Quotes about theory (2998 quotes, page 10)

“In fundamental theory socialism and democracy are almost if not quite one and the same. They both rest at bottom upon the absolute right of the community to determine its own destiny and that of its members. Men as communities are supreme over men as individuals.”

Woodrow Wilson (1856–1924) American politician, 28th president of the United States (in office from 1913 to 1921)

“Socialism and Democracy,” essay published in The Papers of Woodrow Wilson, Arthur S. Link, ed., Vol. 5, Princeton University Press, 1968, pp. 559-62, (first published, August 22, 1887)
1880s

Men , Democracy , Communication

“All doctrines relating to the creation of the world, the government of man by superior beings, and his destiny after death, are conjectures which have been given out as facts, handed down with many adornments by tradition, and accepted by posterity as "revealed religion". They are theories more or less rational which uncivilised men have devised in order to explain the facts of life, and which civilised men believe that they believe.”

William Winwood Reade (1838–1875) British historian

Source: The Martyrdom of Man (1872), Chapter II, "Religion", p. 138.

Life , Death , Men , World

“Our first objective in undertaking the experimental program described here has been to gain some understanding of what goes on in long sequences of plays of Prisoner's Dilemma. We have attempted to gain this understanding by postulating a system going through a sequence of states and by attempting to formulate some mathematical models from which the dynamics of the system could be deduced. Once such a model is found, its parameters, properly interpreted, become the key terms in the emerging psychological theory. This strategy can be deemed successful, if the parameters so discovered are independent of the process itself, if they suggest further investigation, and if the further investigations, in turn, lead to a more inclusive theory.”

Anatol Rapoport (1911–2007) Russian-born American mathematical psychologist

Source: 1960s, Prisoner's dilemma: A study in conflict and cooperation (1965), p. 185

Mathematics , Understanding , Success

“Organizational design often focuses on structural alternatives such as matrix, decentralization, and divisionalization. However, control variables (e. g., reward structures, task characteristics, and information systems) offer a more flexible approach. The purpose of this paper is to explore these control variables for organizational design. This is accomplished by integration and testing of two perspectives, organization theory and economics, notably agency theory. The resulting hypotheses link task characteristics, information systems, and business uncertainty to behavior vs. outcome based control strategy. These hypothesized linkages are examined empirically in a field study of the compensation practices for retail salespeople in 54 stores. The findings are that task programmability is strongly related to the choice of compensation package. The amount of behavioral measurement, the cost of measuring outcomes, and the uncertainty of the business also affect compensation. The findings have management implications for the design of compensation and reward packages, performance evaluation systems, and control systems, in general. Such systems should explicitly consider the task, the information system in place to measure performance, and the riskiness of the business. More programmed tasks require behavior based controls while less programmed tasks require more elaborate information systems or outcome based controls.”

Kathleen M. Eisenhardt American economist

Source: "Control: Organizational and economic approaches," 1985, p. 134; Article abstract

Behavior , Business , Study

“It is hard for you to appreciate that modern mathematics has become so extensive and so complex that it is essential, if mathematics is to stay as a whole and not become a pile of little bits of research, to provide a unification, which absorbs in some simple and general theories all the common substrata of the diverse branches if the science, suppressing what is not so useful and necessary, and leaving intact what is truly the specific detail of each big problem. This is the good one can achieve with axiomatics (and this is no small achievement). This is what Bourbaki is up to.”

André Weil (1906–1998) French mathematician

as translated by Martin H. Krieger "A 1940 letter of André Weil on analogy in mathematics." http://www.ams.org/notices/200503/fea-weil.pdf Notices of the AMS 52, no. 3 (2005) pp. 334–341, quote on p. 341

Mathematics , Problem , Science

“Of the three great skeptics I interviewed, Popper was the first to make his mark. His philosophy stemmed from his effort to distinguish pseudoscience, such as Marxism or astrology or Freudian psychology, from genuine science, such as Einstein's theory of relativity. The latter, Popper decided, was testable; it made predictions about the world that could be empirically checked. The logical positivists had said as much. But Popper denied the positivist assertion that scientists can prove a theory through induction, or repeated empirical tests or observations. One never knows if one's observations have been sufficient; the next observation might contradict all that preceded it. Observations can never prove a theory but can only disprove, or falsify it. Popper often bragged that he had "killed" logical positivism with this argument.”

John Horgan (journalist) (1953) American science journalist

Source: The End of Science (1996), p. 27

World , Effort , Science

“But Adam Smith was a philosopher as well as well as an economist, famous in his time as much for his Theory of Moral Sentiments as for The Wealth of Nations. And as he understood so well, society is more than the sum of its individual parts.”

Paul Ormerod book The Death of Economics

Source: The Death of Economics (1994), Chapter 10, Economics Revisited, p. 212

Time , Parting , Wealth

“From the beginning, the forces of light and the forces of darkness have polarized the field of organizational analysis, and the struggle has been protracted and inconclusive. The forces of darkness have been represented by the mechanical school of organizational theory — those who treat the organization as a machine. This school characterizes organizations in terms o£ such things as:
:* centralized authority
:* clear lines of authority
:* specialization and expertise
:* marked division of labor
:* rules and regulations
:* clear separation of staff and line
The forces of light, which by mid-twentieth century came to be characterized as the human relations school, emphasizes people rather than machines, accommodations rather than machine-like precision, and draws its inspiration from biological systems rather than engineering systems. It has emphasized such things as:
:* delegation of authority
:* employee autonomy
:* trust and openness
:* concerns with the "whole person"
:* interpersonal dynamics
The forces of darkness formulated their position first, starting in the early part of this century. They have been characterized as the scientific management or classical management school…”

Charles Perrow (1925–2019) American sociologist

Source: 1970s, "The short and glorious history of organizational theory", 1973, p. 3

People , School , Light , Parting

“General Systems Theory, as originally intended by Von Bertalanffy, is an ideal framework for the modeling of a business enterprise. Work, in its most civilized form should enrich, empower and emancipate. Thus we must continue to find ways to support work as a humanistic, not mechanistic endeavor. We must continue to seek out new models of business that support and enhance the individual as well as the collective whole. Given all this new technology, we need new institutions for handling it.”

Anthony Stafford Beer (1926–2002) British theorist, consultant, and professor

Beer (1974) Designing Freedom. House Of Anansi Press, Toronto cited in: B. Dawson (2007) "Bertalanffy Revisited: Operationalizing A General Systems Theory Based Business Model Through General Systems Thinking, Modeling, And Practice", In: Proceedings of the 51st Annual Meeting of the ISSS, 2007.

Way , Business , Support

“I don't know what monetarism is. If monetarism just means a good old-fashioned quantity theory, of course it has not failed. If it means the particular version of Milton Friedman, I think it has because he imagines that he can achieve — ascertain — a clear quantity relationship between a measurable quantity of money and the price level. I don't think that is possible. In fact, just about 40 years ago in the opening sentences of my book, Prices and Production, I wrote that it would be a great misfortune if people ever cease to believe in the quantity theory of money. It would be even worse ever to believe it literally. And that's exactly what Milton Friedman does.”

Friedrich Hayek (1899–1992) Austrian and British economist and Nobel Prize for Economics laureate

"Interview with F. A. Hayek", in Cato Policy Report (February 1983)
1980s and later

Money , People , Books , Imagination

“Thus, there exist models, principles, and laws that apply to generalized systems or their subclasses, irrespective of their particular kind, the nature of their component elements, and the relations or „forces‟ between them. It seems legitimate to ask for a theory, not of systems of a more or less special kind, but of universal principles applying to systems in general. In this way, we postulate a new discipline called General Systems Theory. Its subject matter is the formulation and derivation of those principles, which are valid for „systems‟ in general.”

Ludwig von Bertalanffy (1901–1972) austrian biologist and philosopher

Source: General System Theory (1968), 2. The Meaning of General Systems Theory, p. 32

Law , Way , Nature , Universe

“A taxonomy of abilities, like a taxonomy anywhere else in science, is apt to strike a certain type of impatient student as a gratuitous orgy of pedantry. Doubtless, compulsions to intellectual tidiness express themselves prematurely at times, and excessively at others, but a good descriptive taxonomy, as Darwin found in developing his theory, and as Newton found in the work of Kepler, is the mother of laws and theories.”

Raymond Cattell (1905–1998) British-American psychologist

Raymond Cattell (1987), Intelligence: Its Structure, Growth and Action. p. 61

Law , Science , Time

“In this chapter I shall collect those Theorems in the Differential Calculus which, depending only on the laws of combination of the symbols of differentiation, and not on the functions which are operated on by these symbols, may be proved by the method of the separation of the symbols : but as the principles of this method have not as yet found a place in the elementary works on the Calculus, I shall first state? briefly the theory on which it is founded.”

Duncan Gregory (1813–1844) British mathematician

Source: Examples of the processes of the differential and integral calculus, (1841), p. 237; Lead paragraph of Ch. XV, On General Theorems in the Differential Calculus,; Cited in: James Gasser (2000) A Boole Anthology: Recent and Classical Studies in the Logic of George Boole,, p. 52

Law , Dependency

“As the people are the only legitimate fountain of power, and it is from them that the constitutional charter, under which the several branches of government hold their power, is derived, it seems strictly consonant to the republican theory, to recur to the same original authority, not only whenever it may be necessary to enlarge, diminish, or new-model the powers of the government, but also whenever any one of the departments may commit encroachments on the chartered authorities of the others.”

James Madison (1751–1836) 4th president of the United States (1809 to 1817)

Federalist No. 49 (2 February 1788)
1780s, Federalist Papers (1787–1788)

People

“The distinction between identifying reference and uniquely existential assertion is something quite undeniable. The sense in which the existence of something answering to a definite description used for the purpose of identifying reference, and its distinguishability by an audience from anything else, is presupposed and not asserted in an utterance containing such an expression, so used, stands absolutely firm, whether or not one opts for the view that radical failure of the presupposition would deprive the statement of a truth-value. It remains a decisive objection to the theory of Descriptions… that… it amounts to a denial of these undeniable distinctions.”

P. F. Strawson (1919–2006) British philosopher

Strawson (1964) "Identifying Reference and Truth-Values", Theoria Vol xxx; As cited in: Paul Snowdon (2009) " Peter Frederick Strawson http://plato.stanford.edu/archives/fall2009/entries/strawson/", The Stanford Encyclopedia of Philosophy.

Truth , Failure , Decision , Sense

“If you can’t think of an observation that could disprove a theory, that theory simply isn’t scientific.”

Jerry Coyne (1949) American biologist

Source: Why Evolution is True (2009), p. 138

Thinking

“Game theory concepts were first explicitly applied in evolutionary biology by Lewontin (1961). His approach, however, was to picture a species as playing a game against nature, and to seek strategies which minimised the probability of extinction. A similar line has been taken by Slobodkin & Rapoport (1974). In contrast, here we picture members of a population as playing games against each other, and consider the population dynamics and equilibria which can arise.”

John Maynard Smith book Evolution and the Theory of Games

Source: Evolution and the Theory of Games (1973), p. 2.

Game , Nature

“But at no one time had he given an unqualified opinion of the governments which succeeded that event [the abolition of the French monarchy]; much less would he stand pledged to give the least countenance to the scenes of blood and cruelty which had been the almost inseparable attendants on the varied and successive governments that followed one another. He formed his opinion of government by the test of practice, and not by the theory and on paper.”

Charles James Fox (1749–1806) British Whig statesman

Speech in the House of Commons (29 October 1795), reprinted in J Wright (ed.), The Speeches of the Rt. Hon. C. J. Fox in the House of Commons. Volume V (1815), p. 505.
1790s

Time , Success

“At the ULB, Brout and I initiated a research group in fundamental interactions, that is, in the search for the general laws of nature. Joined by brilliant students, many of them becoming world renowned physicists, our group contributed to the many fields at the frontier of the challenges facing contemporary physics. While the mechanism discovered in 1964 was developed all over the world to encode the nature of weak interactions in a "Standard Model," our group contributed to the understanding of strong interactions and quark confinement, general relativity and cosmology. There we introduced the idea of a primordial exponential expansion of the universe, later called inflation, which we related to the origin of the universe itself, a scenario, which I still think may possibly be conceptually the correct one. During these developments, our group extended our contacts with other Belgian universities and got involved in many international collaborations.
With our group and many other collaborators I analysed fractal structures, supergravity, string theory, infinite Kac-Moody algebras and more generally all tentative approaches to what I consider as the most important problem in fundamental interactions: the solution to the conflict between the classical Einsteinian theory of gravitation, namely general relativity, and the framework of our present understanding of the world, quantum theory.”

François Englert (1932) Belgian theoretical physicist

excerpt[François Englert - Biographical, Nobel Prize in Physics (nobelprize.org), 2013, https://www.nobelprize.org/nobel_prizes/physics/laureates/2013/englert-bio.html]

World , Law , Search , Idea

“He said nothing to gratify curiosity, or to satisfy man's ambition by opening doors to worldly greatness. In all His teaching, Christ brought the mind of man in contact with the Infinite Mind. He did not direct the people to study men's theories about God, His word, or His works. He taught them to behold Him as manifested in His works, in His word, and by His providences.
Christ did not deal in abstract theories, but in that which is essential to the development of character, that which will enlarge man's capacity for knowing God, and increase his efficiency to do good. He spoke to men of those truths that relate to the conduct of life, and that take hold upon eternity.”

Ellen G. White book Christ's Object Lessons

Source: Christ's Object Lessons (1900), Ch. 1, p. 23

Life , Men , God , People

“With reference to practical social doctrines, our method permits and commands the same independence. Sociology thus understood will be neither individualistic, communistic, nor socialistic in the sense commonly given these words. On principle, it will ignore these theories, in which it could not recognize any scientific value, since they tend not to describe or interpret, but to reform, social organization.”

Émile Durkheim (1858–1917) French sociologist (1858-1917)

Source: Rules of Sociological Method, 1895, p. 75

Sense

“(Game theory is) essentially a structural theory. It uncovers the logical structure of a great variety of conflict situations and describes this structure in mathematical terms. Sometimes the logical structure of a conflict situation admits rational decisions; sometimes it does not.”

Anatol Rapoport (1911–2007) Russian-born American mathematical psychologist

Source: 1960s, Prisoner's dilemma: A study in conflict and cooperation (1965), p. 196

Game , Mathematics , Decision

“With the added psychological deterrent of litigation, my clashes with the pigs declined somewhat in frequency. They focused primarily on isolating me from others. Their efforts to perpetuate a discontinuity in our unity has been the pigs’ only effective weapon against me. And they’ve admitted in a thousand ways that their greatest fear is ending up with many other prisoners on their hands who think and act as I do. Their isolating me was long a tactic that I could not devise an effective countermeasure against, that is, until after 2001, when I was first exposed to revolutionary theory and have since come to understand the role of ideology. Without a unifying ideology, there can be no unity of struggle. Ideology was something I’d never had, and thus something I could not share. The prisoners who’d united in struggle with me had done so because of me. Not because of a shared principle. Therefore, when I was no longer around, they lost the initiative to struggle on.”

Kevin Rashid Johnson (1971) American prisoner and social activist

Defying the Tomb: Selected Prison Writings and Art of Kevin Rashid Johnson (2010)

Fear , Way , Understanding , Thinking

“I began studying philosophy and economics about the same time. The similarity of the two disciplines struck me at once. I found no difficulty in grasping the differences between the great philosophical systems as they were presented by our textbooks and our teachers. Economic theory was easier still. Indeed, I thought the successive systems of economics were rather crude affairs compared with the subtleties of the metaphysicians. Having run the gamut from Plato to T. H. Green (as undergraduates do) I felt the gamut from Quesnay to Marshall was a minor theme. The technical part of the theory was easy. Give me premises and I could spin speculations by the yard. Also I knew that my 'deductions' were futile…
Meanwhile I was finding something really interesting in philosophy and in economics. John Dewey was giving courses under all sorts of titles and every one of them dealt with the same problem — how we think… And, if one wanted to try his own hand at constructive theorizing, Dewey's notion pointed the way. It is a misconception to suppose that consumers guide their course by ratiocination—they don't think except under stress. There is no way of deducing from certain principles what they will do, just because their behavior is not itself rational. One has to find out what they do. That is a matter of observation, which the economic theorists had taken all too lightly. Economic theory became a fascinating subject—the orthodox types particularly — when one began to take the mental operations of the theorists as the problem…
Of course Veblen fitted perfectly into this set of notions. What drew me to him was his artistic side… There was a man who really could play with ideas! If one wanted to indulge in the game of spinning theories who could match his skill and humor? But if anything were needed to convince me that the standard procedure of orthodox economics could meet no scientific tests, it was that Veblen got nothing more certain by his dazzling performances with another set of premises…
William Hill set me a course paper on 'Wool Growing and the Tariff.”

Wesley Clair Mitchell (1874–1948) American statistician

I read a lot of the tariff speeches and got a new sidelight on the uses to which economic theory is adapted, and the ease with which it is brushed aside on occasion. Also I wanted to find out what really had happened to wool growers as a result of protection. The obvious thing to do was to collect and analyze the statistical data... That was my first 'investigation'.
Wesley Clair Mitchell in letter to John Maurice Clark, August 9, 1928. Originally printed in Methods in Social Science, ed. Stuart Rice; Cited in: Arthur F. Burns (1965, 65-66)

Way , Behavior , Game , Idea

“And the venality of those Judaized is incapable of explaining anti-Semitism as a social phenomenon, we will call it the anti-Semitic theory.”

A.C. Cuza (1857–1947) Romanian politician

From "Ştiinţa antisemitismului" ("The Science of Anti-Semitism"), Apararea Nationala ("The National Defense") No. 16, Nov. 15, 1922, lst year.

“In economic theory the conclusions are sometimes less interesting than the route by which they are reached.”

Piero Sraffa (1898–1983) Italian economist

October 1975 in letter to C.P. Blitch, as cited in: Riccardo Bellofiore, ‎Scott Carter (2014), Towards a New Understanding of Sraffa. p. 199

“The physiocrats started a train of thought which was a powerful stimulus to the development of a labour theory of value and surplus value. They did not, however develop such a theory of value themselves. What attention they gave to the problem of exchange-value and price produced results of an altogether different character. Thus while one of their contributions finds its continuation in Smith, Ricardo, and Marx, the other leads to the post-classical supply and demand and utility theories of value.”

Eric Roll, Baron Roll of Ipsden (1907–2005) British economist

Source: A History of Economic Thought (1939), Chapter III, The Founders Of Political Economy, p. 135

Problem , Training

“I am well aware that some very eminent systematists regard the whole problem as solved. They hold as Darwin did that specific diversity has no physiological foundation or causation apart from adaptation, and that species are impermanent groups, the delimitations of which are ultimately determined by environmental exigency or "fitness." The specific diversity of living things is thus regarded as being something quite different in nature from the specific diversity of inorganic substances. In practice those who share these opinions are, as might be anticipated, to be found among the 'lumpers' rather than among the 'splitters.' In their work, certainly, the Darwinian theory is actually followed as a guiding principle; unanalysed intergradations of all kinds are accepted as impugning the integrity of species; the underlying physiological problem is forgotten, and while the product is almost valueless as a contribution to biological research, I can scarcely suppose that it aids greatly in the advances of other branches of our science.”

William Bateson (1861–1926) British geneticist and biologist

Source: Problems In Genetics (1913), p. 12.

Nature , Problem , Science

“The standard model of ethical theory may seem like merely a necessary consequence of applying to normative ethics the high standards of clarity and rigor prized by all of us who like to think of ourselves as philosophers in the analytic tradition. This way of doing ethics obviously parallels the way analytical philosophers treat many other subjects – by formulating generalizations about this or that and testing them against intuitive counterexamples. But I think the Sidgwickian method of intuitional ethics, or the Rawlsian method of reflective equilibrium, is not the only way to think clearly about ethical theory.”

Allen W. Wood (1942) academic

Kantian Ethics (2008)

Way , Thinking

“Evolution is the foundation for communism. Communism is a theory that believes that God does not exist or is not necessary; that man is responsible. Ties hand in hand with humanism.”

Kent Hovind (1953) American young Earth creationist

Creation seminars (2003-2005), The dangers of evolution

God , Communication

“Human beings seem to be far more autonomous and self-governed than modern psychological theory allows for.”

Abraham Maslow book Motivation and Personality

Source: Motivation and Personality (1954), p. 123.

“Intelligent design is eminently falsifiable. Specified complexity in general and irreducible complexity in biology are within the theory of intelligent design the key markers of intelligent agency. If it could be shown that biological systems like the bacterial flagellum that are wonderfully complex, elegant, and integrated could have been formed by a gradual Darwinian process (which by definition is non-telic), then intelligent design would be falsified on the general grounds that one doesn't invoke intelligent causes when purely natural causes will do. In that case Occam's razor finishes off intelligent design quite nicely.”

William A. Dembski (1960) American intelligent design advocate

2000s

Intelligence , Nature

“What had he learned?
Enough Hebrew and Greek to be able to crawl through the Bible by using lexicons—so that, like all his classmates once they were out of the seminary, he always read it in English. A good many of the more condemnatory texts of the Bible—rather less than the average Holy Roller carpenter-evangelist. The theory that India and Africa have woes because they are not Christianized, but that Christianized Bangor and Des Moines have woes because the devil, a being obviously more potent than omnipotent God, sneaks around counteracting the work of Baptist preachers.”

Sinclair Lewis book Elmer Gantry

Elmer Gantry (1927)

God , Learning , Reading

“In even greater measure is this true of the top. The top has been everybody's toy and must, therefore, at one time or another have piqued everybody's curiosity. Lagrange, Poinsot, Jacobi, not to mention other great names, have in turn paid their tribute; yet the top may be set spinning to-day, unhampered by a completed theory to account for its evolutions.”

Carl Barus (1856–1935) U.S. physicist

"The Mathematical Theory of the Top" (April 8, 1898)

Time

“At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory. But each time a new frontier of observation is broached we inevitably discover new phenomena which force us to modify substantially our previous conceptions. I believe this process to be unending, that the delights and challenges of unexpected discovery will continue always.”

Val Logsdon Fitch (1923–2015) American physicist

Nobel Prize Autobiography (1981).

Nature , Time

“Because certain elements of geometry have for a long time been included in the general course of education, every educated man is able to distinguish between the practical task of the land surveyor and the theoretical investigation of the geometer. The corresponding distinction between the theory of probability and statistics has yet to be recognized.”

Richard von Mises (1883–1953) Austrian physicist and mathematician

Second Lecture, The Elements of the Theory of Probability, p. 32
Probability, Statistics And Truth - Second Revised English Edition - (1957)

Education , Time

“The Apollonian and Dionysian, two great western principles, govern sexual personae in life and art. My theory is this: Dionysus is identification, Apollo objectification. Dionysus is the empathic, the sympathetic, emotion transporting us into other people, other palaces, other times. Apollo is the hard, cold separation of western personality and categorical thought. Dionysus is energy, ecstasy, hysteria, promiscuity, emotionalism -- heedless indiscriminateness of idea or practice. Apollo is obsessiveness, voyeurism, idolatry, fascism -- frigidity and aggression of the eye, petrification of objects. … The quarrel between Apollo and Dionysus is the quarrel between the higher cortex and the older limbic and reptilian brains.”

Camille Paglia (1947) American writer

Source: Sexual Personae: Art and Decadence from Nefertiti to Emily Dickinson (1990), p. 96

Life , People , Art , Idea

“The general theory of economic equilibrium was strengthened and made effective as an organon of thought by two powerful subsidiary conceptions — the Margin and Substitution. The notion of the Margin was extended beyond [Utility]] to describe the equilibrium point in given conditions of any economic factor which can be regarded as capable of small variations about a given value, or in its functional relation to a given value.”

John Maynard Keynes (1883–1946) British economist

Source: Essays In Biography (1933), Alfred Marshall, p. 223

“There is no way to understand the character of the taboo rules, except as a survival from some previous more elaborate cultural background. We know also and as a consequence that any theory which makes the taboo rules … intelligible just as they are without any reference to their history is necessarily a false theory… why should we think about [the theories of] analytic moral philosophers such as Moore, Ross, Prichard, Stevenson, Hare and the rest in any different way? … Why should we think about our modern use of good, right and obligatory in any different way from that in which we think about late eighteenth-century Polynesian uses of taboo?”

Alasdair MacIntyre book After Virtue

Source: After Virtue (1981), p. 113.

Way , History , Intelligence , Understanding

“It is also a good rule not to put overmuch confidence in the observational results that are put forward until they are confirmed by theory.”

Arthur Stanley Eddington (1882–1944) British astrophysicist

As quoted in "Annals of Science II-DNA" by Horace Freeland Judson in The New Yorker (4 December 1978), p. 132

Confidence

“Humanity has just crossed a major landmark in its history with the majority of people now living in cities. Cities have long been known to be society's predominant engine of innovation and wealth creation, yet they are also its main source of crime, pollution, and disease. The inexorable trend toward urbanization worldwide presents an urgent challenge for developing a predictive, quantitative theory of urban organization and sustainable development”

Geoffrey West (1940) British physicist

Bettencourt, L. M., Lobo, J., Helbing, D., Kühnert, C., & West, G. B. (2007). " Growth, innovation, scaling, and the pace of life in cities http://www.pnas.org/content/104/17/7301.long." Proceedings of the national academy of sciences, 104(17), 7301–7306.
2000s

People , Disease , History , Wealth

“I believe it is a mistake for Marxists to lose sight of the value of the Black feminist tradition--including the concept of intersectionality, both in its contribution to combatting the oppression of women of color, working-class women and the ways in which it can help to advance Marxist theory and practice.”

Sharon Smith (writer) (1956) American historian

A Marxist Case For Intersectionality (2017)

Women , Color , Way , Help

“In my view—and that of most contemporary economists, I believe—Schumpeter’s most original and most lastingly significant book was Theory of Economic Development, which appeared in 1911 (and was translated into English in 1934). It was at the University of Czernowitz, not far from the beginning of his career as an economist, that he worked out his conception of the entrepreneur, the maker of “new combinations,” as the driving force and characteristic figure of the fits-and-starts evolution of the capitalist economy. He was explicit that, while technological innovation was in the long run the most important function of the entrepreneur, organizational innovation in governance, finance, and management was comparable in significance.”

Robert Solow (1924) American economist

"Heavy Thinker" (2007)

Books , Universe , Appearance

“Research in statistical theory and techniques is necessarily mathematical, scholarly, and abstract in character, requiring some degree of leisure, detachment, and access to a good mathematical and historical library. The importance of continuing such research is very great, though it is not always obvious to those whose interest is entirely in practical applications of already existing theory. Excepting in the presence of active research in pure science, the application of the science tend to drop into a deadly rut of unthinking routine, incapable of progress beyond a limited range predetermined by the accomplishments of pure science, and are in constant danger of falling into the hands of people who do not really understand the tools that they are working with and who are out of touch with those that do. … It is in fact rather absurd, though quite in line with the precedents of earlier centuries, that scientific men of the highest talents can live only by doing work that could be done by others of lesser special abilities, while the real worth of their most important work receives no official recognition.”

Harold Hotelling (1895–1973) American economist and statistician

Men , People , Mathematics , Understanding

“Since you are advising high school students and undergrads, I suggest that you mention to them that they can start being independent researchers before they graduate from college. For example I came up with my b-money idea (a precursor to Bitcoin) as an undergrad, and was also already thinking about some of the questions that would eventually lead to [updateless decision theory].”

Wei Dai Cryptocurrency pioneer and computer scientist

In a discussion thread https://www.lesswrong.com/posts/x2fkoZMuMNhBashH4/academia-as-a-career-option-its-social-value-and#AZCrzTMa4yvywgahE on LessWrong, March 2014

Money , School , Way , Idea

“The manner in which mathematical theories are applied does not depend on preconceived ideas; it is a purposeful technique depending on, and changing with, experience.”

William Feller (1906–1970) Croatian-American mathematician

Introduction, The Nature of Probability Theory, p. 2 - 3.
An Introduction To Probability Theory And Its Applications (Third Edition)

Mathematics , Idea , Change , Dependency

“Hayek’s essential gist in capital theory was that capital is heterogeneous, that it cannot be put to many uses simultaneously or at different times. If these empirical assumptions as to capital’s heterogeneity are false, then his theoretical system of economic activity falls. Hayek never established that changes in interest rates primarily and predominantly influence capital production of goods of higher order and their prices.”

Alan O. Ebenstein (1959) American political scientist, educator and author

Hayek's Journey: The Mind of Friedrich Hayek (2003)

Change , Time , Falseness

“Our understanding of the four basic concepts of Physics -- space, time, matter and force -- has undergone radical change in the course of work on unification, starting with Maxwell's unification of electricity with magnetism, all the way to present day string theory. What started as four independent concepts, with space and time postulated and the possible forms of matter and force arbitrarily chosen, now appear as different aspects of a rich and novel dynamically determined structure.”

Peter Freund (1936–2018) American physicist

Physics and Geometry, a paper written for the Symposium on Theoretical Physics at the University of Helsinki, Helsinki, Finland on August 28, 2003 and at the Freydoon Mansouri Memorial Session of the 3rd International Symposium on Quantum Theory and Symmetries at the University of Cincinnati, Cincinnati, OH, on September 13, 2003. Report #EFI03-47.

Way , Understanding , Appearance , Change

“From the methodological standpoint, however, we see that 'mechanism' and 'vitalism' by no means form the mutually exclusive disjunction they have been supposed to do. If a 'non-mechanist' wishes to deny the assumption of methodological mechanism that biological explanations must also be physico-chemical ones, it is obviously by no means intended that the required explanation must be 'vitalistic', i. e. involving the assumption that in living organisms factors analogous to psychical ones are 'at work'. A 'non-mechanistic' theory which is not all 'vitalistic' thus appears to be logically possible, and if we make a critical study of mechanism and vitalism this possibility will be seen to be of special importance.”

Ludwig von Bertalanffy (1901–1972) austrian biologist and philosopher

Source: 1930s, Modern Theory of Development, 1933, 1962, p. 29

Study , Appearance

“He stands alone in unapproachable grandeur. Nineteen centuries roll away, and His character so lives that He inspires, millions of men with impassioned love. Other men may seem to be children of their surroundings; He became what He was despite His surroundings, and is the only one who can say in truth and holiness, "Do as I have done." He, the ideal, the perfect one of our race, appears in an age when such an ideal could not have been developed in act — could not have been conceived in thought. In the theory of development the perfection of humanity is the final result of man's history ages hence. Christ therefore is the great miracle which more than any other establishes the fact of miracles. Christ Himself is proof of His own miracles.”

Richard Reynolds (bishop) (1674–1743) Bishop of Lincoln

Reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 57.

Love , Men , Children , Truth

“There has been an increased but still rather limited response to general systems theory, as variously reflected in the work of Bateson, Vayda, Rappaport, Adams, and an interest in the use of computers, programming, matrices, etc. But the interaction between general systems theory (as represented, for example, by the theoretical work of Von Bertalanffy) has been compromised, partly by the state of field data, extraordinarily incomparable as it inevitably is, as well as historical anthropological methods of dealing with wholes. General systems theory has taken its impetus from the excitement of discovering larger and larger contexts, on the one hand, and a kind of microprobing into fine detail within a system, on the other. Both of these activities are intrinsic to anthropology to the extent that field work in living societies has been the basic disciplinary method. It is no revelation to any field-experienced anthropologist that everything is related to everything else, or that whether the entire sociocultural setting can be studied in detail or not, it has to be known in general outline.”

Margaret Mead (1901–1978) American anthropologist

Source: 1970s, Changing Styles of Anthropological Work, 1973, p. 8

Study

“Another tradition in systems theory, known as system dynamics, originated at Massachusetts Institute of Technology. The founder of this tradition was Jay Forrester, a creative engineer who invented the magnetic core memory for computers and who built the Whirlwind computer, which is now in the Smithsonian Institution.”

Stuart A. Umpleby (1944) American scientist

Source: "The origins and purposes of several traditions in systems theory and cybernetics," 1999, p. 85: About System Dynamics

Memory

“Geovisualization integrates approaches from visualization in scientific computing (ViSC), cartography, image analysis, information visualization, exploratory data analysis (EDA), and geographic information systems (GISystems) to provide theory, methods, and tools for visual exploration, analysis, synthesis, and presentation of geospatial data”

Alan MacEachren (1952) American geographer

any data having geospatial referencing
Source: Research challenges in geovisualization (2001), p. 3

“The theory seems to be that so long as a man is a failure he is one of God's chillun, but that as soon as he has any luck he owes it to the Devil.”

H.L. Mencken (1880–1956) American journalist and writer

1940s–present, A Mencken Chrestomathy (1949)

God , Failure

“I was operating under the theory that, even though Baker had been responsible for my appointment, I was representing all three minority senators-Baker, Edward Gurney of Florida, and Weicker. If differences arose within the minority there was no question about where my loyalty lay and whose directions I would take, but I believed that I should try to respond to the wishes of Weicker and Gurney in every way possible.”

Fred Thompson (1942–2015) American politician and actor

page 25
At That Point in Time, Loyalty to Baker

Way , Question , Loyalty

“There is no logical basis to support the theory that plants feel pain. The dubious possibility that they might, however, is no justification for killing obviously sentient beings. Any rational person understands the striking difference between slitting the throat of a sentient animal and plucking a fruit or vegetable.”

Joanne Stepaniak (1954) American writer

Source: Being Vegan (2000), p. 43

Pain , Feeling , Understanding , Support

“Ultimately, if you accept the evolutionary theory, you dismiss ethics, you don’t have to abide by a set of moral codes, you determine your own conscience based on your own desires. You have no reason for things such as selfless love, when a father dives in to save his son from drowning. You can trash the Bible as irrelevant, just silly fables, since you believe that it does not conform to scientific thought. You can be like Lucifer, who said, “I will make myself like the Most High.””

Ben Carson (1951) 17th and current United States Secretary of Housing and Urban Development; American neurosurgeon

As quoted in "Evolution? No" http://archives.adventistreview.org/2004-1509/story2.html, The Adventist Review (2004)

Love

“I am reasonably certain of one thing. The unquestioning acceptance of the Copenhagen interpretation has served to hold back progress on the development of alternative approaches. Blind acceptance of the orthodox position cannot produce the challenges needed to push the theory eventually to its breaking point. And break it will, probably in a way nobody can predict, to produce a theory nobody can imagine. The arguments about reality will undoubtedly persist, but at least we will have a better theory.
I have tried to argue that quantum theory is a difficult subject for modern students of physical science because its interpretation is so firmly rooted in philosophy. If, in arguing the case, I have only made the subject seem even more confusing, then I apologize. However, my most important message is a relatively simple one: quantum theory is rife with conceptual problems and contradictions, and its most common interpretation is anti-realist in nature. If you fine the theory difficult to understand, this is the theory's fault—not yours.”

Jim Baggott (1957) British writer

Closing remarks
Beyond Measure (2004)

Way , Imagination , Understanding , Nature

“You know how much I admire Che Guevara. In fact, I believe that the man was not only an intellectual but also the most complete human being of our age: as a fighter and as a man, as a theoretician who was able to further the cause of revolution by drawing his theories from his personal experience in battle.”

Jean Paul Sartre (1905–1980) French existentialist philosopher, playwright, novelist, screenwriter, political activist, biographer, and …

As quoted in Marianne Sinclair's !Viva Che!: Contributions in Tribute to Ernesto 'Che' Guevara (1968)

Age , Drawing , Personality

“The science of life has nowadays to a certain extent become a crossroad, in which the contemporary intellectual developments converge. The biological theories have acquired a tremendous ideological [weltanschauliche], yes even public and political significance… The condition of biology, problematic in many respects, has led to the situation that the “philosophies of life” were until now by no means satisfactory from the scientific as much as the practical point of view; we see all the more clearly the importance of the theoretical clarification of biology.”

Ludwig von Bertalanffy (1901–1972) austrian biologist and philosopher

Bertalanffy (1930, p. 4–5) as cited in: M. Drack, W. Apfalter, D. Pouvreau (2007) " On the making of a system theory of life: Paul A Weiss and Ludwig von Bertalanffy's conceptual connection http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2874664/". in: Q Rev Biol. 2007 December; 82(4): 349–373.
1930s

Life , Science

“Russell Markert, Lela Rogers, Ed Sedgwick- these were but a few of the experienced theater people who generously gave me a boost. I have a theory about the assists we get in life. Only rarely can we repay those people who helped us, but we can pass that help along to others. That's why, in 1958, I reactivated Lela's theater workshop with two dozen talented kids trying to get started in show business.”

Lucille Ball (1911–1989) American actress and businesswoman

Page 79
Love, Lucy (1996)

Life , People , Business , Help

“I have long had a theory that the popularity of Christianity has always depended on its appeal to the sadism of its adherents. The exceptional should be crucified, saith Society; and somehow everyone suspects (in spite of all arguments to the contrary) that if there is a God, he may be exceptional in some way. So the figure of Christ crucified becomes the figure of the dangerous exceptional alien—suitably defeated. 'Only a suffering God can help', said Bonhoeffer, licking his lips.”

Celia Green (1935) British philosopher

Advice to Clever Children (1981)

God , Way , Suffering , Help

“If, of course, one builds into the concept of an 'individual' all that Professor Hayek does in his Road To Serfdom, Individualism and Economic Order and many other works, which is, to put it briefly, the whole of laisser-faire economic theory, then plainly man as such a programmed predator has very little interest in being fraternal, or very little chance.”

Bernard Crick (1929–2008) British political theorist and democratic socialist

A Footnote To Rally Fellow Socialists, p. 234.
In Defence Of Politics (Second Edition) – 1981

Chance

“I look back with pride to the great measures of social reform—Unemployment Insurance, Labour Exchanges, Safety in the Coalmines, bringing Old Age Pensions down from seventy to sixty-five years of age, the Widows' and Orphans' Pensions—for which I have been responsible both as a Liberal and a Conservative Minister. I find comfort in the broad harmony of thought which prevails between the modern Tory democracy and the doctrines of the famous Liberal leaders of the past. I am sure that in accord with their speeches and writings, men like Asquith, Morley and Grey, whom I knew so well in my youth, would have regarded the establishment of a Socialist State and the enforcement of the collectivist theory as one of the worst evils that could befall Britain and her slowly-evolved, long-cherished way of life.”

Winston S. Churchill (1874–1965) Prime Minister of the United Kingdom

Speech at Huddersfield Town Hall (15 October 1951), quoted in Winston Churchill, Stemming the Tide: Speeches 1951 and 1952 (London: Cassell & Co, 1953), p. 149
Post-war years (1945–1955)

Life , Men , Youth , Age

“Economic theory makes a fundamental assumption that maximizing profits is the basic objective of every firm. But in recent years, profit maximization has been extensively qualified by theorists to refer to the long run; to refer to management’s rather than to owners’ income; to include non-financial income such as increased leisure for high-strung executives and more congenial relations between executive levels within the firm; and to make allowance for special considerations such as restraining competition, maintaining management control, warding off wage demands, and forestalling anti-trust suits. The concept has become so general and hazy that it seems to encompass most of men’s aims in life.
This trend reflects a growing realization by theorists that many firms, and particularly the big ones, do not operate on the principle of profit maximizing in terms of marginal costs and revenues…”

Joel Dean (1906–1979) American economics wrtier

Source: Managerial Economics, 1951, p. 28; Cited in: Peter F. Drucker, Management: Tasks, Responsibilities, Practices, New York: Harper & Row, 1973.

Life , Men

“Although, therefore, the theory of nationality is more absurd and more criminal than the theory of socialism, it has an important mission in the world, and marks the final conflict, and therefore the end, of two forces which are the worst enemies of civil freedom, — the absolute monarchy and the revolution.”

John Dalberg-Acton, 1st Baron Acton (1834–1902) British politician and historian

"Nationality" (1862)

World , Freedom

“You go through different arcs in your career. I think when I was younger, I was very into the performing side of the industry. I came to acting through that way, and then having gone to university and studied cinema studies and watching tons of films and understanding film theory and making a conscious choice of working with auteur director marks a new chapter in my development as an artist.”

Sarah Gadon (1987) Canadian actress

Way , Understanding , Thinking , Study

“Intellectual honesty requires that one reflect on the contribution one’s theory makes to the class struggle, and acknowledge it openly. One does not have to accept the specific claim that there are two, and only two, mutually exclusive worldviews, to one of which any theory must commit itself, to accept the general claim that entertaining, developing and propounding a theory are actions, and as such they represent ways of taking a position in the world. This means that any kind of comprehensive understanding of politics will also have to treat the politics of theorization, including the politics of whatever theory is itself at the given time being presented for scrutiny, as a candidate for acceptance.”

Raymond Geuss book Philosophy and Real Politics

Philosophy and Real Politics (2008).
Philosophy and Real Politics (2008)

World , Way , Understanding , Time

“Now - how can we possibly examine something we use all the time and presuppose in every statement? How can we criticize the terms in which we habitually express our observations? Let us see! The first step in our criticism of commonly-used concepts is to create a measure of criticism, something with which these concepts can be compared. Of course, we shall later want to know a little more about the measuring stick itself; for example, we shall want to know whether it is better than, or perhaps not as good as, the material examined. But in order for this examination to start there must be a measuring-stick in the first place. Therefore, the first step in our criticism of customary concepts and customary reactions is to step outside the circle and either to invent a new conceptual system, for example a new theory, that clashes with the most carefully established observational results and confounds with the most plausible theoretical principles, or to import such a system from outside science, from religion, from mythology, from the ideas of incompetents, or the ramblings of madmen. This step is, again, counter-inductive, Counter-induction is thus both a fact”

Paul Karl Feyerabend book Against Method

science could not exist without it - and a legitimate and much needed move in the game of science.
Pg 68.
Against Method (1975)

Religion , Game , Idea , Science

“I personally have great skepticism about the theories extolling the wonders of "Asian values." They are often based on badly researched generalizations and frequently uttered by governmental spokesmen countering accusations of authoritarianism and violations of human rights (as happened spectacularly at the World Conference on Human Rights in Vienna in 1993).”

Amartya Sen (1933) Indian economist

1990s, Foreword to The Passions and the Interests (1996)

World , Personality

“Game theory, analyzing in a novel mathematical framework, rational competition between two or more antagonists for maximum gain and minimum loss.”

Ludwig von Bertalanffy (1901–1972) austrian biologist and philosopher

General System Theory (1968), 4. Advances in General Systems Theory

Game , Mathematics , Loss

“Cardan's originality in the matter seems to have been shown chiefly in four respects. First, he reduced the general equation to the type x^3 + bx = c; second, in a letter written August 4, 1539, he discussed the question of the irreducible case; third, he had the idea of the number of roots to be expected in the cubic; and, fourth, he made a beginning in the theory of symmetric functions. …With respect to the irreducible case… we have the cube root of a complex number, thus reaching an expression that is irreducible even though all three values of x turn out to be real. With respect to the number of roots to be expected in the cubic… before this time only two roots were ever found, negative roots being rejected. As to the question of symmetric functions, he stated that the sum of the roots is minus the coefficient of x2</sup”

David Eugene Smith (1860–1944) American mathematician

Source: History of Mathematics (1925) Vol.2, pp.461-464

Idea , Question , Time

“In the Far West, the United States of America openly claimed to be custodians of the whole planet. Universally feared and envied, universally respected for their enterprise, yet for their complacency very widely despised, the Americans were rapidly changing the whole character of man’s existence. By this time every human being throughout the planet made use of American products, and there was no region where American capital did not support local labour. Moreover the American press, gramophone, radio, cinematograph and televisor ceaselessly drenched the planet with American thought. Year by year the aether reverberated with echoes of New York’s pleasures and the religious fervours of the Middle West. What wonder, then, that America, even while she was despised, irresistibly moulded the whole human race. This, perhaps, would not have mattered, had America been able to give of her very rare best. But inevitably only her worst could be propagated. Only the most vulgar traits of that potentially great people could get through into the minds of foreigners by means of these crude instruments. And so, by the floods of poison issuing from this people’s baser members, the whole world, and with it the nobler parts of America herself, were irrevocably corrupted.
For the best of America was too weak to withstand the worst. Americans had indeed contributed amply to human thought. They had helped to emancipate philosophy from ancient fetters. They had served science by lavish and rigorous research. In astronomy, favoured by their costly instruments and clear atmosphere, they had done much to reveal the dispositions of the stars and galaxies. In literature, though often they behaved as barbarians, they had also conceived new modes of expression, and moods of thought not easily appreciated in Europe. They had also created a new and brilliant architecture. And their genius for organization worked upon a scale that was scarcely conceivable, let alone practicable, to other peoples. In fact their best minds faced old problems of theory and of valuation with a fresh innocence and courage, so that fogs of superstition were cleared away wherever these choice Americans were present. But these best were after all a minority in a huge wilderness of opinionated self-deceivers, in whom, surprisingly, an outworn religious dogma was championed with the intolerant optimism of youth. For this was essentially a race of bright, but arrested, adolescents. Something lacked which should have enabled them to grow up. One who looks back across the aeons to this remote people can see their fate already woven of their circumstance and their disposition, and can appreciate the grim jest that these, who seemed to themselves gifted to rejuvenate the planet, should have plunged it, inevitably, through spiritual desolation into senility and age-long night.”

Olaf Stapledon book Last and First Men

Source: Last and First Men (1930), Chapter II: Europe’s Downfall; Section 1, “Europe and America” (p. 33)

Fate , People , Pleasure , Youth

“The following Treatise… has been endeavoured to make the theory of limits, or ultimate ratios… the sole foundation of the science, without any aid whatsoever from the theory of series, or algebraical expansions. I am not aware that any work exists in which this has been avowedly attempted, and I have been the more encouraged to make the trial from observing that the objections to the theory of limits have usually been founded either upon the difficulty of the notion itself, or its unalgebraical character, and seldom or never upon anything not to be defined or not to be received in the conception of a limit…”

Augustus De Morgan (1806–1871) British mathematician, philosopher and university teacher (1806-1871)

Advertisement, p.3
The Differential and Integral Calculus (1836)

Science

“Einstein had drawn attention to nonlocality in 1935 in an effort to show that quantum mechanics must be flawed. …Einstein proposed a thought experiment—now called the EPR experiment—involving two particles that spring from a common source and fly in opposite directions.
According to the standard model of quantum mechanics, neither particle has a definite position or momentum before it is measured; but by measuring the momentum of one particle, the physicist instantaneously forces the other particle to assume a fixed position… Deriding this effect as "spooky action at a distance," Einstein argued that it violated both common sense and his own theory of special relativity, which prohibits the propagation of effects faster than the speed of light; quantum mechanics must therefore be an incomplete theory. In 1980, however, a group of French physicists carried out a version of the EPR experiment and showed that it did indeed give rise to spooky action.”

John Horgan (journalist) (1953) American science journalist

The reason that the experiment does not violate special relativity is that one cannot exploit nonlocality to transmit information.
Source: The End of Science (1996), p. 83

Spring , Sense , Effort , Light

“The Rigveda stated that the earth was a …globe suspended freely in space. The Vedic texts disclosed that the Sun held the earth and heavenly bodies in its orbit. The Shatapatha Brahmana, a treatise of untold antiquity, recognized and explained the fact that the earth was spherical.. Aryabhata explained the daily rising and setting of planets and stars in terms of the earth’s constant revolutionary motion. The Surya Siddhantha said that the earth, owing to its gravitational force draw all things to itself. In physics, the thinker Kanada, explained light and heat as different aspects of the same element, thus anticipating Clarke Maxwell's Electro-magnetic Theory, which unified different forms of radiant energy. Sankaracharya, in his Advaita thought expanded the concept of unity of matter and energy. Vacaspati recognized light as composed of minute particles emitted by substances, anticipating Newton’s Corpuscular Theory of Light and the later discovery of the Photon. In Botany, Sankara Mishra and Kanada have discussed the circulation of sap in the Plant and the Santiparva of Mahabharata has clearly stated that the plants develop on the strength of nutrients made through interaction of sunlight and materials obtained from the air and ground. Bhaskarcharya's concept of Differential Calculus preceded Newton by many centuries. His study of time identified Truti: The 3400th part of a second as the unit of time.”

Shankar Dayal Sharma (1918–1999) Indian politician

He has rightly brought out the rationality and application of Sanskrit literature in diverse fields
Source: Aruna Goel Good Governance and Ancient Sanskrit Literature http://books.google.co.in/books?id=El_VADF13pUC&pg=PA16, Deep and Deep Publications, 1 January 2003, p. 16-17

Star , Study , Light , Time

“Democracy is beautiful in theory; in practice it is a fallacy. You in America will see that some day.”

Benito Mussolini (1883–1945) Duce and President of the Council of Ministers of Italy. Leader of the National Fascist Party and subsequen…

to Edwin L. James of the New York Times (1928)
1920s

Beauty , Democracy

“Therefore psychologically we must keep all the theories in our heads, and every theoretical physicist who is any good knows six or seven different theoretical representations for exactly the same physics.”

Richard Feynman book The Character of Physical Law

Source: The Character of Physical Law (1965), chapter 7, “Seeking New Laws,” p. 168

“The purpose of spending years developing an organizational theory is the hope that it will lead to improvements in organizations.”

Kenneth D. Mackenzie (1937) American management consultant

Kenneth D. Mackenzie (2011). The Organizational Hologram. p. 11

Hope

“In the realm of physics it is perhaps only the theory of relativity which has made it quite clear that the two essences, space and time, entering into our intuition, have no place in the world constructed by mathematical physics. Colours are thus "really" not even æther-vibrations, but merely a series of values of mathematical functions in which occur four independent parameters corresponding to the three dimensions of space, and the one of time.”

Hermann Weyl (1885–1955) German mathematician

Introduction
Space—Time—Matter (1952)

World , Mathematics , Time

“Freedom is not merely a word or an abstract theory, but the most effective instrument for advancing the welfare of man.”

John F. Kennedy (1917–1963) 35th president of the United States of America

Message to the Inter-American Economic and Social Conference at Punta del Este, Uruguay (5 August 1961) http://www.presidency.ucsb.edu/ws/?pid=8271
1961

Freedom

“I cannot refrain… from expressing my surprise that, according to the report in The Times there should be so much complaint about the difficulty of understanding the new theory. It is evident that Einstein's little book "About the Special and the General Theory of Relativity in Plain Terms," did not find its way into England during wartime. Any one reading it will, in my opinion, come to the conclusion that the basic ideas of the theory are really clear and simple; it is only to be regretted that it was impossible to avoid clothing them in pretty involved mathematical terms, but we must not worry about that. …
The Newtonian theory remains in its full value as the first great step, without which one cannot imagine the development of astronomy and without which the second step, that has now been made, would hardly have been possible. It remains, moreover, as the first, and in most cases, sufficient, approximation. It is true that, according to Einstein's theory, because it leaves us entirely free as to the way in which we wish to represent the phenomena, we can imagine an idea of the solar system in which the planets follow paths of peculiar form and the rays of light shine along sharply bent lines—think of a twisted and distorted planetarium—but in every case where we apply it to concrete questions we shall so arrange it that the planets describe almost exact ellipses and the rays of light almost straight lines.
It is not necessary to give up entirely even the ether. …according to the Einstein theory, gravitation itself does not spread instantaneously, but with a velocity that at the first estimate may be compared with that of light. …In my opinion it is not impossible that in the future this road, indeed abandoned at present, will once more be followed with good results, if only because it can lead to the thinking out of new experimental tests. Einstein's theory need not keep us from so doing; only the ideas about the ether must accord with it.”

Hendrik Lorentz (1853–1928) Dutch physicist

Theory of Relativity: A Concise Statement (1920)

Books , Way , Imagination , Mathematics

“One truth we have been able to count on concerning scientific persuit over the centuries has been that only testable theories survive the intense scrutiny of experimental science.”

John Moffat book Reinventing Gravity

Source: Reinventing Gravity (2008), Chapter 8, Strings And Quantum Gravity, p. 136

Truth , Science

“A fact is discovered, a theory is invented; is any theory ever deep enough for it to be truly called a creation? Most scientists would answer: no! Science, they would say, engages only part of the mind - the rational intellect - but creation must engage the whole mind. Science demands none of that ground swell of emotion, none of the rich bottom of personality, which fills out the work of art…
Creation consists in finding unity, finding likenesses, finding pattern…
Nature herself is chaos; she is full of infinite variety without order. But if you see her with inner vision, a creative mind (whether a poetic mind like Charles Baudelaire's or a scientific mind like Isaac Newton's), there comes a moment when many different aspects suddenly crystallize in a single unity. You have found a key; you have found a clue; you have found the path which organizes the material. You have found what Coleridge called "unity in variety."”

Jacob Bronowski (1908–1974) Polish-born British mathematician

That is the moment of creation.
Source: The Creative Process, 1958, p. 97-98: As quoted in: S.P. Sector (‎1997). A Study of Issues Relating to the Patentability of Biotechnological Subject Matter. Footnote 51. https://www.ic.gc.ca/eic/site/ippd-dppi.nsf/eng/ip00201.html

Art , Nature , Science , Parting

“Politics cannot be a science, because in politics theory and practice cannot be separated, and the sciences depend upon their separation.”

W. H. Auden (1907–1973) Anglo-American poet

"Tyranny”
A Certain World: A Commonplace Book (1970)

Science , Dependency

“Perhaps it was his return to Paris [In June 1919 Piet Mondrian returned to Paris] that was needed to provide him with fresh new possibilities in his work. Invigoration. His most recent work is without composition. The division of the picture plane is modular. That means ordinary rectangles, all the same size. The only contrast is in the colour. In my view, this runs counter to his theory concerning the abolition of position and dimension. This is in effect equality of position and dimension.”

Theo van Doesburg (1883–1931) Dutch architect, painter, draughtsman and writer

Quote from his letter to the Dutch modern architect Oud, 24 June 1919; as quoted in Mondrian, -The Art of Destruction, Carel Blotkamp, Reaktion Books LTD. London 2001, p. 126
1912 – 1919

“As philosophy becomes academic and tends to repudiate its responsibility to the culture in which it flourishes, the layman in need of wisdom and vision turns to evangelic practicalists, who confirm him in his myopic prejudice that the exclusive end of moral philosophy is actually to direct social activity toward the concrete and immediate improvement of social conditions. But, since there is no way of knowing except by arduous philosophical criticism whether the ends to which a reformer would lead us represent genuine improvement, the practicalist’s impatience with theory is at best hasty.”

Eliseo Vivas (1901–1993) American philosopher

The Moral Life and the Ethical Life (Chicago: 1950), pp. 3-4

Wisdom , Way

“Ajdukiewicz's view, published in the Erkenntnis, certainly did not fail to influence the opinions held by the neo-positivist supporters of semantic philosophy. But Ajdukiewicz was not alone in his opinions which fitted Carnap's principle of tolerance and, e. g., the theories of C. G. Hempel.”

Adam Schaff (1913–2006) Polish Marxist philosopher and theorist

Source: Introduction to semantics, 1962, p. 80-81

Support

“The 'new theory of money and the cycle' which is spoken of in the opening paragraph is of course Hayek's. It was from Hayek that I began - where I got to will be seen. Even at the end, I was minimising my differences from Hayek. I could do so because, as I have elsewhere explained (Economic Perspectives, p. 141n), I still thought, like Pigou and Robertson, and Hayek, but by that time unlike Keynes, that 'we were talking about fluctuations, which, since they did not result in complete collapse or complete explosion, could not have engendered an expectation of going on forever. Booms could then be considered as times of high prices, slumps as times of low prices - with regard to some norm, which throughout the which throughout the fluctuations would not be changed, or not much changed'.”

John Hicks (1904–1989) British economist

Source: Money, Interest and Wages, (1982), p. 28; on his "Equilibrium and the Cycle" (1933), an influential work on the topics of intertemporal equilibrium, monetary theory, and trade cycle phenomena.

Money , Change , Time

“The last decade has seen a steady increase in the application of concepts from the theory of games to the study of evolution. Fields as diverse as sex ratio theory, animal distribution, contest behaviour and reciprocal altruism have contributed to what is now emerging as a universal way of thinking about phenotypic evolution.”

John Maynard Smith book Evolution and the Theory of Games

Source: Evolution and the Theory of Games (1973), p. vii.

Sex , Way , Game , Thinking

“Most theories of learning have been based on ideas of "reinforcement" of success. But all these theories postulate a single, centralized reward mechanism. I doubt this could suffice for human learning because the recognition of which events should be considered memorable cannot be a single, uniform process. It requires too much "intelligence." Instead I think such recognitions must be made, for each division of the mind, by some other agency that has engaged the present one for a purpose.”

Marvin Minsky (1927–2016) American cognitive scientist

K-Linesː A Theory of Memory (1980)

Intelligence , Idea , Thinking , Learning

“Historians of the future will amuse themselves by coming up with theories to explain why European civilization, at the height of its powers, rich with unparalleled achievements in science, music, art, literature, mathematics, and technology, gave up its lands and its treasures to people for whom those achievements were mere hated tokens of oppression or the impious and superfluous productions of infidels.”

John Derbyshire (1945) writer

Multiculturalism: When Will the Sleeper Wake? http://takimag.com/article/multiculturalism_when_will_the_sleeper_wake_john_derbyshire/print#ixzz3xOopVxdb, Taki's Magazine, March 29, 2012.

Hate , People , Art , Music

“In June of 1964 the research group and academic program moved to Penn bringing with it most of the faculty, students, and research projects. Our activities flourished in the very supportive environment that Penn and Wharton provided. The wide variety of faculty members that we were able to involve in our activities significantly enhanced our capabilities. By the mid-1960s I had become uncomfortable with the direction, or rather, the lack of direction, of professional Operations Research. I had four major complaints.
First, it had become addicted to its mathematical tools and had lost sight of the problems of management. As a result it was looking for problems to which to apply its tools rather than looking for tools that were suitable for solving the changing problems of management. Second, it failed to take into account the fact that problems are abstractions extracted from reality by analysis. Reality consists of systems of problems, problems that are strongly interactive, messes. I believed that we had to develop ways of dealing with these systems of problems as wholes. Third, Operations Research had become a discipline and had lost its commitment to interdisciplinarity. Most of it was being carried out by professionals who had been trained in the subject, its mathematical techniques. There was little interaction with the other sciences professions and humanities. Finally, Operations Research was ignoring the developments in systems thinking — the methodology, concepts, and theories being developed by systems thinkers.”

Russell L. Ackoff (1919–2009) Scientist

Preface, cited in Gharajedaghi, Jamshid. Systems thinking: Managing chaos and complexity: A platform for designing business architecture http://booksite.elsevier.com/samplechapters/9780123859150/Front_Matter.pdf. Elsevier, 2011. p. xiii
Towards a Systems Theory of Organization, 1985

Way , Mathematics , Support , Problem