Quotes about assumption
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Salvador Dalí photo

“The H-bomb is coming out of my intuitive and inspirationic command, for my spirit speaketh and speaketh psychologically, intuitively, and inspirationally and guides the destinies of the nations of the earth... My Assumption is the opposite of the atomic bomb. Instead of disintegration of matter, we have the integration, the reconstitution of the real and glorious body of the Virgin in the heavens.”

Salvador Dalí (1904–1989) Spanish artist

Quote from a review of Dali's exhibition at the Carstairs Gallery; 'The New Yorker', 20 December, 1952 p. 24
Dali is referring to one of his exhibited paintings there, very probably 'The Madonna of Port Lligat'
Quotes of Salvador Dali, 1951 - 1960

William Kingdon Clifford photo
George Will photo

“Many of the words and numbers bandied by Obama and his administration may reflect an honest belief that the world is whatever well-intentioned people like them say about it. So, Obama's critics should reconsider their assumption that he is cynical. It is his sincerity that is scary.”

George Will (1941) American newspaper columnist, journalist, and author

Column, February 7, 2014, "President Obama's Magic Words and Numbers" http://www.washingtonpost.com/opinions/george-will-president-obamas-magic-words-and-numbers/2014/02/07/220fbc04-8f76-11e3-84e1-27626c5ef5fb_story.html at washingtonpost.com.
2010s

Jane Roberts photo
François Viète photo
Eduard Hanslick photo

“Philosophy establishes itself as a discourse by opposition to the authority of received opinion, especially the opinions sedimented as cult and as law. Philosophy puts into question the authority of what has been handed down. It is not just that there is a critique of philosophic authorities; rather, philosophy appears to be characterized by rejection of intellectual authority as such. How is philosophy to distinguish, then, a permissible authority from those many impermissible authorities which it must reject if it is to survive?
Perhaps it would be better to avoid the quandary altogether by dismissing authority in order to consider only the "content" of the claims under consideration, regardless of their pretensions. The dismissal fails for at least two reasons. The first is that there are no claims in philosophic texts that are wholly free at least from the implicit constructions of authority. If criticism takes only the content, then it ends up with something other than the texts that have constituted the discourse of philosophy. There is no Platonic "theory of Forms" dissociable from the Platonic pedagogy, that is, from the teaching authority of the Platonic Socrates. The second reason for not being able to dismiss authority altogether is that the very criticism that wants to look only at contents will impose itself as an authority in its choice of procedure. One will still have authority, but an authority that refuses to raise any question about authority.
Perhaps the question about legitimate authority could be avoided, again, by replying that the obvious criterion for claims in philosophy is the truth. The assumption here is that access to the truth is had entirely apart from the authority of philosophical traditions. Yet it is a biographical fact that one is brought into philosophy by education. First principles are learned most often not by simple observation or by the natural light of reason, but under the tutelage of some authoritative tradition.”

Authority and persuasion in philosophy (1985)

William H. Starbuck photo
Poul Anderson photo

“The invalid assumption that correlation implies cause is probably among the two or three most serious and common errors of human reasoning.”

Stephen Jay Gould (1941–2002) American evolutionary biologist

Source: The Mismeasure of Man (1996), p. 272

Robert S. Kaplan photo
John Maynard Smith photo
Albert Einstein photo

“I just want to explain what I mean when I say that we should try to hold on to physical reality.
We are … all aware of the situation regarding what will turn out to be the basic foundational concepts in physics: the point-mass or the particle is surely not among them; the field, in the Faraday-Maxwell sense, might be, but not with certainty. But that which we conceive as existing ("real") should somehow be localized in time and space. That is, the real in one part of space, A, should (in theory) somehow "exist" independently of that which is thought of as real in another part of space, B. If a physical system stretches over A and B, then what is present in B should somehow have an existence independent of what is present in A. What is actually present in B should thus not depend the type of measurement carried out in the part of space A; it should also be independent of whether or not a measurement is made in A.
If one adheres to this program, then one can hardly view the quantum-theoretical description as a complete representation of the physically real. If one attempts, nevertheless, so to view it, then one must assume that the physically real in B undergoes a sudden change because of a measurement in A. My physical instincts bristle at that suggestion.
However, if one renounces the assumption that what is present in different parts of space has an independent, real existence, then I don't see at all what physics is supposed to be describing. For what is thought to be a "system" is after all, just conventional, and I do not see how one is supposed to divide up the world objectively so that one can make statements about parts.”

Albert Einstein (1879–1955) German-born physicist and founder of the theory of relativity

"What must be an essential feature of any future fundamental physics?" Letter to Max Born (March 1948); published in Albert Einstein-Hedwig und Max Born (1969) "Briefwechsel 1916-55"<!-- p. 223 Nymphenburger, Munich-->, and in Potentiality, Entanglement and Passion-at-a-Distance: Quantum Mechanical Studies for Abner Shimony, Volume Two edited by Robert Cohen, Michael Horn, and John Stachel (1997), p. 121 http://books.google.com/books?id=DsNoIcQemTsC&lpg=PP1&pg=PA121#v=onepage&q&f=false
1940s

Harry V. Jaffa photo
Daniel Handler photo
Jordan Peterson photo

“I also don't think it's unsophisticated to think of God the Father as the spirit that arises from the crowd that exists into the future. You make sacrifices in the present so that the future is happy with you. The question is, then, what is that future that would be happy with you? It's the spirit of humanity. That's who you're negotiating with, because you make the assumption that if you forgo impulsive pleasure and get your medical degree, that when you're done in ten years and when you're a physician, humanity as such will honor your sacrifice and commitment, and it will open the doors to you. So you're treating the future as if it's a single being, and you're also treating it as if it's a compassionate judge. You're acting that out. And maybe, once we figured out that there is a future, we needed to imagine God in that form in order to concretize something that we could bargain with so that we could figure out how to use sacrifice so that we could guide ourselves into the future. Because if sacrifice is a contract with the future, but not with any particular person, then it is a contract with the spirit of humanity as such. It's something like that. To come up with the idea that you can bargain with the future is THE major idea of humankind. We suffer. What do we do about it? We figure out how to bargain with the future. And we minimize suffering in that manner.”

Jordan Peterson (1962) Canadian clinical psychologist, cultural critic, and professor of psychology

Concepts

“The concepts of purposive behavior and teleology have long been associated with a mysterious, self-perfecting or goal-seeking capacity or final cause, usually of superhuman or super-natural origin. To move forward to the study of events, scientific thinking had to reject these beliefs in purpose and these concepts of teleological operations for a strictly mechanistic and deterministic view of nature. This mechanistic conception became firmly established with the demonstration that the universe was based on the operation of anonymous particles moving at random, in a disorderly fashion, giving rise, by their multiplicity, to order and regularity of a statistical nature, as in classical physics and gas laws. The unchallenged success of these concepts and methods in physics and astronomy, and later in chemistry, gave biology and physiology their major orientation. This approach to problems of organisms was reinforced by the analytical preoccupation of the Western European culture and languages. The basic assumptions of our traditions and the persistent implications of the language we use almost compel us to approach everything we study as composed of separate, discrete parts or factors which we must try to isolate and identify as potential causes. Hence, we derive our preoccupation with the study of the relation of two variables. We are witnessing today a search for new approaches, for new and more comprehensive concepts and for methods capable of dealing with the large wholes of organisms and personalities.”

Lawrence K. Frank (1890–1968) American cyberneticist

L.K. Frank (1948) "Foreword". In L. K. Frank, G. E. Hutchinson, W. K. Livingston, W. S. McCulloch, & N. Wiener, Teleological mechanisms. Ann. N. Y. Acad. Sc., 1948, 50, 189-96; As cited in: Ludwig von Bertalanffy (1968) "General System Theory: Foundations, Development, Applications". p. 16-17

Georgy Zhukov photo
Henry Hazlitt photo

“I do not mean to suggest that all those who call themselves monetarists make this unconscious assumption that an inflation involves this uniform rise of prices. But we may distinguish two schools of monetarism. The first would prescribe a monthly or annual increase in the stock of money just sufficient, in their judgment, to keep prices stable. The second school (which the first might dismiss as mere inflationists) wants a continuous increase in the stock of money sufficient to raise prices steadily by a "small" amount—2 or 3 per cent a year. These are the advocates of a "creeping" inflation. … I made a distinction earlier between the monetarists strictly so called and the "creeping inflationists." This distinction applies to the intent of their recommended policies rather than to the result. The intent of the monetarists is not to keep raising the price "level" but simply to keep it from falling, i. e., simply to keep it "stable." But it is impossible to know in advance precisely what uniform rate of money-supply increase would in fact do this. The monetarists are right in assuming that in a prospering economy, if the stock of money were not increased, there would probably be a mild long-run tendency for prices to decline. But they are wrong in assuming that this would necessarily threaten employment or production. For in a free and flexible economy prices would be falling because productivity was increasing, that is, because costs of production were falling. There would be no necessary reduction in real profit margins. The American economy has often been prosperous in the past over periods when prices were declining. Though money wage-rates may not increase in such periods, their purchasing power does increase. So there is no need to keep increasing the stock of money to prevent prices from declining. A fixed arbitrary annual increase in the money stock "to keep prices stable" could easily lead to a "creeping inflation" of prices.”

Henry Hazlitt (1894–1993) American journalist

Where the Monetarists Go Wrong (1976)

Samuel P. Huntington photo
Richard Stallman photo
Kenneth Minogue photo

“false and eccentric assumption of male and female isomorphism”

Kenneth Minogue (1930–2013) Australian political theorist

How Civilizations Fall

Jordan Peterson photo

“12 principles for a 21st century conservatism.
1. The fundamental assumptions of Western civilization are valid.
2. Peaceful social being is preferable to isolation and to war. In consequence, it justly and rightly demands some sacrifice of individual impulse and idiosyncrasy.
3. Hierarchies of competence are desirable and should be promoted. 
4. Borders are reasonable. Likewise, limits on immigration are reasonable. Furthermore, it should not be assumed that citizens of societies that have not evolved functional individual-rights predicated polities will hold values in keeping with such polities.
5. People should be paid so that they are able and willing to perform socially useful and desirable duties. 
6. Citizens have the inalienable right to benefit from the result of their own honest labor.
7. It is more noble to teach young people about responsibilities than about rights. 
8. It is better to do what everyone has always done, unless you have some extraordinarily valid reason to do otherwise.
9. Radical change should be viewed with suspicion, particularly in a time of radical change.
10. The government, local and distant, should leave people to their own devices as much as possible.
11. Intact heterosexual two-parent families constitute the necessary bedrock for a stable polity. 
12. We should judge our political system in comparison to other actual political systems and not to hypothetical utopias.”

Jordan Peterson (1962) Canadian clinical psychologist, cultural critic, and professor of psychology

Speech of Jordan Peterson at Carleton Place for the Conservative Party of Ontario <nowiki>[12 https://www.youtube.com/watch?v=Nyw4rTywyY0</nowiki>]
Concepts

Henry Hazlitt photo
Vijay Govindarajan photo
J. Michael Straczynski photo

“Your assumption, and the truth, dine at totally separate tables.”

J. Michael Straczynski (1954) American writer and television producer

[Specualtion and Worries on New B5 project, J. Michael Straczynski, 11 February 2004, rec.arts.sf.tv.babylon5.moderated, 20040217173540.19352.00001496@mb-m26.aol.com, http://groups.google.com/group/rec.arts.sf.tv.babylon5.moderated/msg/a1c75369be24e657]

Leszek Kolakowski photo

“Lenin’ s article of 1905, "Party Organization and Party Literature", was used for decades, and is still used, to justify ideologically the enslavement of the written word in Russia. It has been argued that it refers only to political literature, but this is not so: it relates to every kind of writing. It contains the words: "Down with non-partisan writers! Down with literary supermen! Literature must become part of the common cause of the proletariat, ‘ a cog and a screw’ of one single great Social Democratic mechanism set in motion by the entire politically conscious vanguard of the entire working class" (Works, vol. 10, p. 45). For the benefit of "hysterical intellectuals" who deplore this seemingly bureaucratic attitude, Lenin explains that there can be no mechanical levelling in the field of literature; there must be room for personal initiative, imagination, etc.; none the less, literary work must be part of the party’ s work and controlled by the party. This, of course, was written during the fight for "hourgeois democracy", on the assumption that Russia would in due course enjoy freedom of speech but that literary members of the party would have to display party-mindedness in their writings; as in other cases, the obligation would become general when the party controlled the apparatus of state coercion.”

Leszek Kolakowski (1927–2009) Philosopher, historian of ideas

pg. 515
Main Currents Of Marxism (1978), Three Volume edition, Volume II, The Golden Age

Alain de Botton photo
Warren Farrell photo
Warren Farrell photo

“In a democracy, a government’s policies are rarely questioned until the underlying assumptions that create them are questioned.”

Warren Farrell (1943) author, spokesperson, expert witness, political candidate

Source: Father and Child Reunion (2001), p. 147.

Benjamin Harrison photo

“In fact, using entirely reasonable assumptions, you can make the Dow's discounted market value almost anything you want it to be.”

William J. Bernstein (1948) economist

Source: The Four Pillars of Investing (2002), Chapter 2, Measuring The Beast, p. 53.

Olivier Blanchard photo
J. B. S. Haldane photo
Peggy Noonan photo
Wilfred Thesiger photo
George Santayana photo

“That life is worth living is the most necessary of assumptions and, were it not assumed, the most impossible of conclusions.”

George Santayana (1863–1952) 20th-century Spanish-American philosopher associated with Pragmatism

The Life of Reason: The Phases of Human Progress (1905-1906), Vol. I, Reason in Common Sense

Barry Schwartz photo
Bernhard Riemann photo

“Nevertheless, it remains conceivable that the measure relations of space in the infinitely small are not in accordance with the assumptions of our geometry [Euclidean geometry], and, in fact, we should have to assume that they are not if, by doing so, we should ever be enabled to explain phenomena in a more simple way.”

Bernhard Riemann (1826–1866) German mathematician

Memoir (1854) Tr. William Kingdon Clifford, as quoted by A. D'Abro, The Evolution of Scientific Thought from Newton to Einstein https://archive.org/details/TheEvolutionOfScientificThought (1927) p. 55.

Alan Keyes photo
J. Edgar Hoover photo
Richard Feynman photo

“Whenever you see a sweeping statement that a tremendous amount can come from a very small number of assumptions, you always find that it is false. There are usually a large number of implied assumptions that are far from obvious if you think about them sufficiently carefully.”

Richard Feynman (1918–1988) American theoretical physicist

volume II; lecture 26, "Lorentz Transformations of the Fields"; section 26-1, "The four-potential of a moving charge"; p. 26-2
The Feynman Lectures on Physics (1964)

Hans Reichenbach photo
Charlotte Perkins Gilman photo
Bernhard Riemann photo
Bernhard Riemann photo

“Secondly, the student is trained to accept historical mis-statements on the authority of the book. If education is a pre- paration for adult life, he learns first to accept without question, and later to make his own contribution to the creation of historical fallacies, and still later to perpetuate what he has learnt. In this way, ignorant authors are leading innocent students to hysterical conclusions. The process of the writers' mind provides excellent material for a manual on logical fallacies. Thirdly, the student is told nothing about the relationship between evidence and truth. The truth is what the book ordains and the teacher repeats. No source is cited. No proof is offered. No argument is presented. The authors play a dangerous game of winks and nods and faints and gestures with evidence. The art is taught well through precept and example. The student grows into a young man eager to deal in assumptions but inapt in handling inquiries. Those who become historians produce narratives patterned on the textbooks on which they were brought up. Fourthly, the student is compelled to face a galling situation in his later years when he comes to realize that what he had learnt at school and college was not the truth. Imagine a graduate of one of our best colleges at the start of his studies in history in a university in Europe. Every lecture he attends and every book he reads drive him mad with exasperation, anger and frustration. He makes several grim discoveries. Most of the "facts", interpretations and theories on which he had been fostered in Pakistan now turn out to have been a fata morgana, an extravaganza of fantasies and reveries, myths and visions, whims and utopias, chimeras and fantasies.”

Khursheed Kamal Aziz (1927–2009) historian

The Murder of History, critique of history textbooks used in Pakistan, 1993

Hillary Clinton photo

“[W]hether I am meant to or not, I challenge assumptions about women. I do make some people uncomfortable, which I'm well aware of, but that's just part of coming to grips with what I believe is still one of the most important pieces of unfinished business in human history -- empowering women to be able to stand up for themselves.”

Hillary Clinton (1947) American politician, senator, Secretary of State, First Lady

Vogue interview (November 21, 2009) http://abcnews.go.com/Politics/hillary-comeback-clinton-rival-cabinet/story?id=9145125&page=2
Secretary of State (2009–2013)

Northrop Frye photo

“Man lives, not directly or nakedly in nature like the animals, but within a mythological universe, a body of assumptions and beliefs developed from his existential concerns.”

Northrop Frye (1912–1991) Canadian literary critic and literary theorist

Introduction, p. xviii
"Quotes", The Great Code: The Bible and Literature (1982)

Gary Hamel photo
Noam Chomsky photo

“On the most usual assumption, the universe is homogeneous on the large scale, i. e. down to regions containing each an appreciable number of nebulae. The homogeneity assumption may then be put in the form: An observer situated in a nebula and moving with the nebula will observe the same properties of the universe as any other similarly situated observer at any time.”

Hermann Bondi (1919–2005) British mathematician and cosmologist

Sir Hermann Bondi, "Review of Cosmology," Monthly Notices of the Royal Astronomical Society 1948, p. 107-8, as cited in: Hermann Friedmann. Wissenschaft und Symbol, Biederstein, 1949, p. 472

Michael Shea photo
Judea Pearl photo

“A quantity Q(M) is identifiable, given a set of assumptions A, iffor any two models M1 and M2 that satisfy A, we have
P(M1) = P(M2) ⇒ Q(M1) = Q(M2)”

Judea Pearl (1936) Computer scientist

Source: Causality: Models, Reasoning, and Inference, 2000, p. 77 : cited in: Rick H. Hoyle (2014). Handbook of Structural Equation Modeling. p. 75
Hoyle (2014) further explained: In words, the functional details of M1 and M2 do not matter; what matters is that the assumptions in A (e.g. those encoded in the diagram) would constrain the variability of those details in such a way that equality of P's would entail equality of Q's. When this happens, Q depends on P only and should therefore be expressible in terms of the parameters of P. The section “Identification Using Graphs” will exemplify and operationalize this notion.

Jeff Hawkins photo
Tjalling Koopmans photo
Stanley Baldwin photo
Robert Solow photo
Noam Chomsky photo
Pentti Linkola photo
Lois McMaster Bujold photo

“A pattern of basic assumptions--invented, discovered, or developed by a given group as it learns to cope with its problems of external adaptation and internal integration--that has worked well enough to be considered valid and, therefore, to be taught to new members as the correct way to perceive, think, and feel in relation to those problems.”

Edgar H. Schein (1928) Psychologist

Variant: [ Organizational culture is] a pattern of shared basic assumptions that the group learned as it solved its problems of external adaptation and internal integration, that has worked well enough to be considered valid and, therefore, to be taught to new members as the correct way to perceive, think, and fell in relation to those problems.
Source: Organizational Culture and Leadership, 1985, p. 6

Carl Sagan photo
John C. Dvorak photo
Arthur Schopenhauer photo

“Philosophy of religion … really amounts to … philosophizing on certain favorite assumptions that are not confirmed at all.”

E. Payne, trans. (1974) Vol. 1, p. 143
Parerga and Paralipomena (1851), On Philosophy in the Universities

Paul A. Samuelson photo

“In the preface to the reissue of Risk, Uncertainty and Profit, Frank Knight makes the penetrating observation that under the conditions envisaged above the velocity of circulation would become infinite and so would the price level. This is perhaps an over-dramatic way of saying that nobody would hold money, and it would become a free good to go into the category of shell and other things which once served as money. We should expect too that it would not only pass out of circulation, but it would cease to be used as a conventional numeraire in terms of which prices are expressed. Interest bearing money would emerge. Of course, the above does not happen in real life, precisely because uncertainty, contingency needs, non-synchronization of revenues and outlay, transaction frictions, etc., etc., all are with us. But the abstract special case analyzed above should warn us against the facile assumption that the average levels of the structure of interest rates are determined solely or primarily by these differential factors. At times they are primary, and at other times, such as the twenties in this country, they may not be. As a generalization I should hazard the hypothesis that they are likely to be of great importance in an economy in which there is a “quasi-zero" rate of interest. I think by this hypothesis one can explain many of the anomalies of the United States money market in the thirties.”

Source: 1940s, Foundations of Economic Analysis, 1947, Ch. 5 : Theory of Consumer’s Behavior

“Companies are in the midst of a revolutionary transformation. Industrial age competition is shifting to information age competition. During the industrial age, from 1850 to about 1975, companies succeeded by how well they could capture the benefits from economies of scale and scope. Technology mattered, but, ultimately, success accrued to companies that could embed the new technology into physical assets that offered efficient, mass production of standard products.
During the industrial age, financial control systems were developed in companies, such as General Motors, DuPont, Matsushita, and General Electric, to facilitate and monitor efficient allocations of financial and physical capital. A summary financial measure such as return-on-capital employed (ROCE) could both direct a company’s internal capital to its most productive use and monitor the efficiency by which operating divisions used financial and physical capital to create value for shareholders.
The emergence of the information era, however, in the last decades of the twentieth century, made obsolete many of the fundamental assumptions of industrial age competition. No longer could companies gain sustainable competitive advantage by merely deploying new technology into physical assets rapidly, and by excellent management of financial assets and liabilities.”

David P. Norton (1941) American business theorist, business executive and management consultant

Source: The Balanced Scorecard, 1996, p. 2-3

Alan Rusbridger photo

“In the days when we could take it for granted that journalism mattered, we could only share assumptions about what it was, how it was delivered and funded, but this is not the case any more.”

Alan Rusbridger (1953) British newspaper editor

Attributed to Alan Rusbridger (2008) in: David Kang (2013) " Essay: Do the cultural industries make money or art? http://forewords.tumblr.com/post/653245658" forewords.tumblr.com.
2000s

Uri Avnery photo
Terence McKenna photo
Mike Tomlin photo

“I'm not concerned about avoiding anything that happened three years ago or worried about letdowns or things of that nature. When you use the term 'letdown' you proceed with the assumption that this is a continuation of something that happened in the past.”

Mike Tomlin (1972) head coach of the National Football League's Pittsburgh Steelers

Referring to the Steelers' poor start in 2006 following their Super Bowl win, as quoted in "Tomlin looks ahead" by Ed Bouchette, in The Pittsburgh Post-Gazette (1 August 2009) http://www.post-gazette.com/pg/09213/987980-66.stm

“When one is considering systems it's always wise to raise questions about the most obvious and simple assumptions.”

C. West Churchman (1913–2004) American philosopher and systems scientist

Source: 1960s - 1970s, The Systems Approach (1968), p. ix

“What mathematics, therefore are expected to do for the advanced student at the university, Arithmetic, if taught demonstratively, is capable of doing for the children even of the humblest school. It furnishes training in reasoning, and particularly in deductive reasoning. It is a discipline in closeness and continuity of thought. It reveals the nature of fallacies, and refuses to avail itself of unverified assumptions. It is the one department of school-study in which the sceptical and inquisitive spirit has the most legitimate scope; in which authority goes for nothing. In other departments of instruction you have a right to ask for the scholar’s confidence, and to expect many things to be received on your testimony with the understanding that they will be explained and verified afterwards. But here you are justified in saying to your pupil “Believe nothing which you cannot understand. Take nothing for granted.” In short, the proper office of arithmetic is to serve as elementary 268 training in logic. All through your work as teachers you will bear in mind the fundamental difference between knowing and thinking; and will feel how much more important relatively to the health of the intellectual life the habit of thinking is than the power of knowing, or even facility of achieving visible results. But here this principle has special significance. It is by Arithmetic more than by any other subject in the school course that the art of thinking—consecutively, closely, logically—can be effectually taught.”

Joshua Girling Fitch (1824–1903) British educationalist

Source: Lectures on Teaching, (1906), pp. 292-293.