Quotes about logic (1454 quotes, page 11)

“By the logical syntax of a language, we mean the formal theory of the linguistic forms of that language -- the systematic statement of the formal rules which govern it together with the development of the consequences which follow from these rules. A theory, a rule, a definition, or the like is to be called formal when no reference is made in it either to the meaning of the symbols (for examples, the words) or to the sense of the expressions (e. g. the sentences), but simply and solely to the kinds and order of the symbols from which the expressions are constructed.”

Rudolf Carnap (1891–1970) German philosopher

Source: Logical Syntax of Language, 1934/1937, p. 1

Sense

“Conceptual graphs are system of logic based on the existential graphs of Charles Sanders Peirce and the semantic networks of artificial intelligence. The purpose of the system is to express meaning in a form that is logically precise, humanly readable, and computationally tractable. With their direct mapping to language, conceptual graphs can serve as an intermediate language for translating computer-oriented formalisms to and from natural languages. With their graphic representation, they can serve as a readable, but design and specification language.”

John F. Sowa (1940) artificial intelligence researcher

Source: Conceptual graphs for knowledge representation, 1993, p. 3-51. cited in: Bernhard Ganter, Gerd Stumme, Rudolf Wille (2005) Formal Concept Analysis: Foundations and Applications. p. 87

Intelligence , Nature

“Art has not the celestial and universal value that people like to attribute to it. Life is far more interesting. Dada knows the correct measure that should be given to art: with subtle, perfidious methods, Dada introduces it into daily life. And vice versa. In art, Dada reduces everything to an initial simplicity, growing always more relative. It mingles its caprices with the chaotic wind of creation and the barbaric dances of savage tribes. It wants logic reduced to a personal minimum.”

Tristan Tzara (1896–1963) Romanian and French avant-garde poet, essayist and performance artist

1920s, Lecture on Dada', 1922

Life , People , Art , Universe

“Galileo had provided the methodology for the analysis of motions on and near the earth and had applied it successfully. Copernicus and Kepler had previously obtained the laws of motion of the planets and their satellites. …But Galileo had succeeded in deriving numerous laws from a few physical principles and… the axioms and theorems of mathematics. …The Keplerian laws …were not logically related to each other. Each was an independent inference from observations. …They seemed to be suspended in the same vacuum in which the planets moved.
Galileo's laws had the additional advantage of supplying physical insight. The first law of motion and the law that the force of graviation gives… a downward acceleration of 32 ft/sec2… explain the vertrical rise and fall of bodies, motion on slopes, and projectile motion. Kepler's laws… had no physical basis. …Kepler tried to introduce the idea of a magnetic force which the sun exerted… But he failed to related the behavior of the planets to the precise laws of planetary motion. …
The new astronomical theory was completely isolated from the theory of motion on earth. …it bothered mathematicians and scientists who believed that all the phenomena of the universe were governed by one master plan instituted by the master planner—God.”

Morris Kline (1908–1992) American mathematician

Source: Mathematics and the Physical World (1959), pp. 224-225

God , Law , Behavior , Mathematics

“After logic we must proceed to philosophy proper. Here too we have to learn from our predecessors, just as in mathematics and law. Thus it is wrong to forbid the study of ancient philosophy. Harm from it is accidental, like harm from taking medicine, drinking water, or studying law.”

Averroes (1126–1198) Medieval Arab scholar and philosopher

Ch 1.9
The Decisive Treatise

Law , Mathematics , Drink , Study

“All truly creative thought is in some sense intuitive; it demands a leap forward into the dark world of uncreated reality. Seen in this way, intuition is not the abdication of reason but rather reason speeded up, encapsulated in an instant, so that a solution appears without the usual laborious logical preparations. A creative genius comes back from this undiscovered country like ones of the the heroes of antiquity, who has wrested something back from the gods and brought it to mankind. It is possible, perhaps, to see religious inspiration in a similar way.”

Karen Armstrong (1944) author and comparative religion scholar from Great Britain

Source: Muhammad: A Biography of The Prophet (2001), Chapter 4: "Revelation"

God , World , Way , Reality

“Mathematics as an expression of the human mind reflects the active will, the contemplative reason, and the desire for aesthetic perfection. Its basic elements are logic and intuition, analysis and construction, generality and individuality. Though different traditions may emphasize different aspects, it is only the interplay of these antithetic forces and the struggle for their synthesis that constitute the life, usefulness, and supreme value of mathematical science.”

Richard Courant (1888–1972) German American mathematician (1888-1972)

Richard Courant in: The Australian Mathematics Teacher, Volumes 39-40 http://books.google.co.in/books?id=CofxAAAAMAAJ, Australian Association of Mathematics Teachers, 1983, p. 3

Life , Mathematics , Science , Perfection

“In time truth and science and nature will adapt themselves to art. Things will happen logically, and the villain be discomfited instead of being elected to the board of directors. But in the meantime fiction must not only be divorced from fact, but must pay alimony and be awarded custody of the press despatches.”

O. Henry (1862–1910) American short story writer

"The Plutonian Fire"
The Voice of the City (1908)

Truth , Art , Nature , Science

“God grant that the reader, emboldened and having become at present as fierce as what he is reading, find, without loss of bearings, his way, his wild and treacherous passage through the desolate swamps of these sombre, poison-soaked pages; for, unless he should bring to his reading a rigorous logic and a sustained mental effort at least as strong as his distrust, the lethal fumes of this book shall dissolve his soul as water does sugar.”

Comte de Lautréamont book Les Chants de Maldoror

Les Chants de Maldoror, Canto 1 (1868)

God , Books , Way , Soul

“Correctly understood, the phrase “tyranny of values” may supply the key to the understanding that all thinking about values only foments and intensifies the old and endless struggle between convictions and interests. Not much is gained by what the modern philosophy of values acknowledges as the “fundamental relationship,” according to which, occasionally the lower value may be preferred to the higher value, because that is the prerequisite of the higher value. All that points only to the confusion that affects the whole argumentation about values, which continually gives rise to new relations and points of view, thereby the position is always maintained from which the opponent is reproached that he does not heed the manifest values; or, in other words, he is disqualified as value-blind. The polemical utilization of the word “blind” is adequate to the logic of values as long as it is concerned with the systems of reference that it will build up out of viewpoints, standpoints, and vantage-points.”

Carl Schmitt (1888–1985) German jurist, political theorist and professor of law

"The Tyranny of Values" (1959)

Understanding , Thinking

“…many questions about the phenomenon of Israel… Students are saying that sixty years ago such a country did not exist… I tell them to study the history of WWI and WWII. One of my students told me that during WWII, which more than tens of millions of people perished in, news about the war, was quickly disseminated by the warring parties. Each touted their victories and the most recent battlefront defeat of the other party. After the war they claimed that six million Jews had been killed. Six million people that were surely related to at least two million families. Again let us assume that these events are true. Does that logically translate into the establishment of the state of Israel in the Middle East or support for such a state? How can this phenomenon be rationalized or explained?”

Mahmoud Ahmadinejad (1956) 6th President of the Islamic Republic of Iran

Paragraphs 8, 10-12
2006, Letter to George W. Bush, 2006

War , People , Family , History

“[In the Qur’an] faith is still defined the same as in the Bible, a belief in what is not seen. This explains why the remaining scripture relies on the logical fallacy of the circular argument routing back to the assumed conclusion. There is nothing that is indicated by evidence, nothing that is verifiably correct, just empty assertions of impossible nonsense that you’re supposed to swallow without question simply because it says so.”

Aron Ra (1962) Aron Ra is an atheist activist and the host of the Ra-Men Podcast

Patheos, The Cow http://www.patheos.com/blogs/reasonadvocates/2016/01/22/the-cow/ (January 22, 2016)

Faith , Question

“There is a kind, I might almost say, of artistic satisfaction, when we are able to survey the enormous wealth of Nature as a regularly ordered whole — a kosmos, an image of the logical thought of our own mind.”

Hermann von Helmholtz (1821–1894) physicist and physiologist

"On the Conservation of Force" (1862), p. 279
Popular Lectures on Scientific Subjects (1881)

Nature , Wealth

“Hockey is an art. It requires speed, precision, and strength like other sports, but it also demands an extraordinary intelligence to develop a logical sequence of movements, a technique which is smooth, graceful and in rhythm with the rest of the game.”

Jacques Plante (1929–1986) Canadian ice hockey player

Quoted in Kevin Shea, "One on One with Jacques Plante," http://www.legendsofhockey.net/html/spot_oneononep197802.htm Legends of Hockey.net (2005-05-24)

Art , Game , Intelligence , Sport

“The activity of the artist makes him less socially conditioned and more humans. It is then that he is disposed to revolution. Society stands against anarchy; the artist stands for the human against society; society therefore threats him As an anarchist. Society's logic is faulty, but its intimation of an enemy is not. Still, the social conflict with society is an incidental obstacle in the artist's path.”

Robert Motherwell (1915–1991) American artist

Source: 1940s, Beyond the Aesthetics' (1946), pp. 38-39

“Whether game theory leads to clear-cut solutions, to vague solutions, or to impasses, it does achieve one thing. In bringing techniques of logical and mathematical analysis gives men an opportunity to bring conflicts up from the level of fights, where the intellect is beclouded by passions, to the level of games, where the intellect has a chance to operate.”

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

Source: 1960s, "The Use and Misuse of Game Theory," 1962, p. 114

Men , Game , Mathematics , Passion

“Unfortunately, the critics of economics have had a tendency to discuss the whole structure as a tissue of misconceptions. It is a critique that fails. The strength of economics is its considerable, if far from complete, understanding of the flows and comparative advantages that underlie trade, jobs, capital and incomes, and the logic of optimising behaviour, all backed by glittering accomplishment in mathematics. That makes it a powerful analytical instrument, so that just a few misconceptions – such as a failure to understand the informal economy or resource depletion – have leverage: like a baby monkey at the controls of a Ferrari, they can turn it into an instrument with extraordinarily destructive potential. If it were a tissue of errors, it would not be dangerous: it is its 90 percent brilliance which makes it so.”

David Fleming (1940–2010) British activist

Lean Logic, (2016), p. 123, entry on Economics http://www.flemingpolicycentre.org.uk/lean-logic-surviving-the-future/

Error , Mathematics , Failure , Understanding

“You can go through your whole life telling yourself that life is logical, life is prosaic, life is sane. Above all, sane. And I think it is. I've had a lot of time to think about that.”

Stephen King book Rage

Rage (1977)

Life , Thinking , Time

“Government programs once established never end, they just never end. The logic is evermore decision made by government and ever fewer decisions made by individuals. Democracy is an extraordinary thing, but Hitler could've been elected democratically. Democracy is not the same as liberty. It is not the same as individual rights.”

Alan Charles Kors (1943) American academic

2010s, Socialism's Legacy (2011), Q&A

Democracy , Decision

“The Japanese see things that way. They don't paint sunlight, they don't cast shadows that perplex one and falsify the true shape of things. The Egyptian figures have simplicity, dignity, directness, unity; they express motion almost as if by a conventional formula, like writing itself, so direct it is. So I seek a logical method of rendering my idea.”

André Derain (1880–1954) French painter and engraver

Source: The Wild Men of Paris', 1910, p. 407

Way , Idea , Painting

“Logic is neither a science nor an art, but a dodge.”

Benjamin Jowett (1817–1893) Theologian, classical scholar, and academic administrator

Letters

Art , Science

“The word 'definition' has come to have a dangerously reassuring sound, owing no doubt to its frequent occurrence in logical and mathematical writings.”

Willard van Orman Quine (1908–2000) American philosopher and logician

"Two dogmas of Empiricism", p. 26
From a Logical Point of View: Nine Logico-Philosophical Essays (1953)

Mathematics

“The individual was the state, and the state was Italy, and Italy was Fascism, and Mussolini was all of them. Such a series of substitutions constitutes the sustaining logic of charismatic totalitarian socialism.”

A. James Gregor (1929–2019) American political scientist

Source: The Ideology of Fascism: The Rationale of Totalitarianism, (1969), p. 326

“Among the most viable of all economic delusions is the belief that machines on net balance create unemployment. Destroyed a thousand times, it has risen a thousand times out of its own ashes as hardy and vigorous as ever. Whenever there is long-continued mass unemployment, machines get the blame anew. This fallacy is still the basis of many labor union practices. The public tolerates these practices because it either believes at bottom that the unions are right, or is too confused to see just why they are wrong. The belief that machines cause unemployment, when held with any logical consistency, leads to preposterous conclusions. Not only must we be causing unemployment with every technological improvement we make today, but primitive man must have started causing it with the first efforts he made to save himself from needless toil and sweat.”

Henry Hazlitt book Economics in One Lesson

Economics in One Lesson (1946), The Curse of Machinery (ch. 7)

Effort , Time

“The practical activity of man had to lead his consciousness to the reptetition of various logical figures thousands of millions of times in order that these figures could obtain the significance of axioms.”

Vladimir Lenin (1870–1924) Russian politician, led the October Revolution

Collected Works, Vol. 29, p. 172.
Collected Works

Time

“The only logical attitude that any Objectivist should take toward the present government and constitution is one of uncompromising hostility. And since one does not sanction evil in any capacity, that means that every Objectivist should withdraw his sanction from the political establishment immediately and in every possible way.”

Roy A. Childs, Jr. (1949–1992) American libertarian essayist and critic

“The Contradiction in Objectivism,” 1968

Hostility , Way , Evil

“Sociology is the science whose object is to interpret the meaning of social action and thereby give a causal explanation of the way in which the action proceeds and the effects which it produces. By "action" in this definition is meant the human behaviour when and to the extent that the agent or agents see it as subjectively meaningful […] the meaning to which we refer may be either (a) the meaning actually intended either by an individual agent on a particular historical occasion or by a number of agents on an approximate average in a given set of cases, or (b) the meaning attributed to the agent or agents, as types, in a pure type constructed in the abstract. In neither case is the "meaning" to be thought of as somehow objectively "correct" or "true" by some metaphysical criterion. This is the difference between the empirical sciences of action, such as sociology and history and any kind of a priori discipline, such as jurisprudence, logic, ethics, or aesthetics whose aim is to extract from their subject-matter "correct" or "valid" meaning.”

Max Weber (1864–1920) German sociologist, philosopher, and political economist

Max Weber, The Nature of Social Action, 1922

Way , History , Science

“This was the might of France, the pride of France, the tactic of the world's first conscript army, and this column, Clausel's counter-attack, ignored cold mathematical logic. It was not defeated by the line.”

Bernard Cornwell (1944) British writer

Narrator, p. 253
Sharpe (Novel Series), Sharpe's Sword (1983)

World , Mathematics

“The inner mysteries of quantum mechanics require a willingness to extend one’s mental processes into a strange world of phantom possibilities, endlessly branching into more and more abstruse chains of coupled logical networks, endlessly extending themselves forward and even backwards in time.”

John Clive Ward (1924–2000) British-Australian nuclear physicist

J. C. Ward, Memoirs of a Theoretical Physicist (Optics Journal, Rochester, 2004).

World , Time

“And there will be, and will ever remain, an impassable gulf between the religious consciousness and the logical, unless the logical consciousness reaches up to embrace the religious, and learns to state the absolute Is in terms of the absolute Ought.”

George Holmes Howison (1834–1916) American philosopher

Source: The City of God and the True God as its Head (In Royce’s “The Conception of God: a Philosophical Discussion Concerning the Nature of the Divine Idea as a Demonstrable Reality”), p.124

Learning

“Thought is led, by the situation of its objects, to measure their truth in terms of another logic, another universe of discourse. And this logic projects another mode of existence: the realization of the truth in the words and deeds of man. And inasmuch as this project involves man as societal animal,” the polis, the movement of thought has a political content. Thus, the Socratic discourse is political discourse inasmuch as it contradicts the established political institutions. The search for the correct definition, for the “concept” of virtue, justice, piety, and knowledge becomes a subversive undertaking, for the concept intends a new polis.”

Herbert Marcuse book One-Dimensional Man

Source: One-Dimensional Man (1964), pp. 133-134

Truth , Justice , Search , Knowledge

“It might seem limited to impose our human perception to try to deduce the grandest cosmic code. But we are the product of the universe and I think it can be argued that the entire cosmic code is imprinted in us. Just as our genes carry the memory of our biological ancestors, our logic carries the memory of our cosmological ancestry. We are not just imposing human-centric notions on a cosmos independent of us. We are progeny of the cosmos and our ability to understand it is an inheritance.”

Janna Levin (1967) American theoretical cosmologist

How the Universe Got its Spots (2002)

Understanding , Thinking , Universe , Memory

“You can hire logic, in the shape of a lawyer, to prove anything that you want to prove.”

Oliver Wendell Holmes (1809–1894) Poet, essayist, physician

The Autocrat of the Breakfast Table (1858)

“A science fiction writer is—or should be—constrained by what is, or logically might be. That can mean simple fidelity to facts (which, in science, are always more important than theories—though Lord knows the two help shape each other, undermining the convenient, complacent separation of observer and observed). To me it also means heeding the authentic, the actual and concrete. Bad fiction uses the glossy generality; good writing needs the smattering of detail, the unrelenting busy mystery of the real.”

Gregory Benford (1941) Science fiction author and astrophysicist

Afterword to Exposures, p. 246
In Alien Flesh (1986)

Business , Science , Help

“Though Lewis' views frequently are well left of center on the political spectrum, his writing is moderate. Lewis is at once passionate and logical - great to argue with in your head.”

Anthony Lewis (1927–2013) American journalist

[Richard H., Weiss, November 5, 1998, St. Louis Post-Dispatch, Times columnist likes to mine a vein of thought, G1]
About

Passion

“It lies deep in our habits, confirmed by all manner of educational and other arrangements for several centuries back, to consider human talent as best of all evincing itself by the faculty of eloquent speech. Our earliest schoolmasters teach us, as the one gift of culture they have, the art of spelling and pronouncing, the rules of correct speech; rhetorics, logics follow, sublime mysteries of grammar, whereby we may not only speak but write. And onward to the last of our schoolmasters in the highest university, it is still intrinsically grammar, under various figures grammar. To speak in various languages, on various things, but on all of them to speak, and appropriately deliver ourselves by tongue or pen,—this is the sublime goal towards which all manner of beneficent preceptors and learned professors, from the lowest hornbook upwards, are continually urging and guiding us.”

Thomas Carlyle (1795–1881) Scottish philosopher, satirical writer, essayist, historian and teacher

1850s, Latter-Day Pamphlets (1850), Stump Orator (May 1, 1850)

Education , Art , Learning , Universe

“This principle of cosmic subjection has by theists always been realised with reference to God: the natural world, they are always telling us, however full of laws to which other conscious beings are subject, is completely subject to the mind and will of God, and its laws are imposed upon it from his mind in virtue of his creating it. What we now learn, and need to note, is that this is just as true of any other being who can be reckoned free. If men are free, then, they must be taken as being logically prior to Nature; as being its source rather than its outcome; as determining its order instead of being determined by this.”

George Holmes Howison (1834–1916) American philosopher

Source: The Limits of Evolution, and Other Essays, Illustrating the Metaphysical Theory of Personal Ideaalism (1905), The Harmony of Determinism and Freedom, p.325

Men , God , World , Law

“Evolution’s logical, unlike religion. Even the Church will agree with that. You have to take religion on faith and you can’t test it by common sense.”

Lester del Rey (1915–1993) Novelist, short story writer, editor

Source: The Eleventh Commandment (1962), Chapter 8 (p. 72)

Faith , Religion , Sense

“Among creations I am the beginning, the middle, and also the end, O Arjuna, I am the science of the Self, and I am the logic of all arguments.”

Baba Hari Dass (1923–2018) master yogi, author, builder, commentator of Indian spiritual tradition

Bhagavad Gita, Ch X, verse 32
Srimad Bhagavad Gita, Ch. VII-XII, 2014

Science

“…we must go to the poets to see what they all meant by it; but the sum is an emotion — clear and strong as love and much clearer than logic,— whose charm lies in its unstable balance. The Transition is the equilibrium between the Love of God,— which is Faith, and the Logic of God,— which is Reason; between the round arch and the pointed. One may not be sure which pleases most, but one need not be harsh towards people who think that the moment of balance is exquisite. The last and highest moment is seen at Chartres where, in 1200, the charm depends on the constant doubt whether emotion or science is uppermost.”

Henry Adams (1838–1918) journalist, historian, academic, novelist

Mont Saint Michel and Chartres (1904)

Love , God , People , Faith

“Have you heard of the wonderful one-hoss shay,
That was built in such a logical way
It ran a hundred years to a day?”

Oliver Wendell Holmes (1809–1894) Poet, essayist, physician

The Deacon's Masterpiece; reported in Bartlett's Familiar Quotations, 10th ed. (1919).

Way

“You seem to be using some sort of logical system where when you get near any explanation, you say: “By definition my problem is insoluble. Now that explanation over there would solve it. But since I’ve defined my problem as insoluble, then by definition that solution doesn’t apply.””

Samuel R. Delany book Triton

Source: Triton (1976), Chapter 3 “Avoiding Kangaroos” (p. 123)

Problem

“What had been released into the desert vacuum and starry oases of the galaxy was the inexorable logic of reproduction and natural selection. What followed was parasitism, predation, symbiosis, interdependency—chaos, complexity, life.”

Robert Charles Wilson book Vortex

Source: Vortex (2011), Chapter 32 (p. 304)

Life , Nature

“There are only two means by which men can deal with one another: guns or logic. Force or persuasion. Those who know that they cannot win by means of logic, have always resorted to guns.”

Ayn Rand book Philosophy: Who Needs It

Philosophy: Who Needs It (1982)

Men

“Neither in the arts, nor in logic, nor in life should an idea by in any way treated as a thing.”

Joseph Joubert (1754–1824) French moralist and essayist

Life , Art , Way , Idea

“The calculus was the first achievement of modern mathematics and it is difficult to overestimate its importance. I think it defines more unequivocally than anything else the inception of modern mathematics; and the system of mathematical analysis, which is its logical development, still constitutes the greatest technical advance in exact thinking.”

John Von Neumann (1903–1957) Hungarian-American mathematician and polymath

As quoted in Bigeometric Calculus: A System with a Scale-Free Derivative (1983) by Michael Grossman, and in Single Variable Calculus (1994) by James Stewart.

Mathematics , Thinking

“Lawrence O'Donnell: Mr. Cain, in fact, you were in college from 1963 to 1967, at the height of the civil rights movement, exactly when the most important demonstrations and protests were going on. You could easily, as a student at Morehouse, between 1963 and 1967, actively participated in the kinds of protests that got African Americans the rights they enjoy today. You watched from that perspective at Morehouse when you were not participating in those processes. You watch black college students from around the country and white college students from around the country come to the South and be murdered fighting for the right of African Americans. Do you regret sitting on those sidelines at that time?
Herman Cain: Lawrence, your attempt to say that I sat on the sidelines is an irrelevant comparison that you are trying to deduce from that—
Lawrence O'Donnell: It's in your book. It's in your book.
Herman Cain: Now, Lawrence, I know what's in my book. Now, let me ask you a question. Did you expect every black student and every black college in America to be out there, in the middle of every fight? The answer is no. So for you to say, why was I sitting on the sidelines, I think that that is an inaccurate deduction that you are trying to make. You didn't know, Lawrence, what I was doing with the rest of my life. You didn't know what my family situation may have been. Maybe, just maybe, I had a sick relative, which is why I might not have been sitting in, or doing the Freedom Rides. So what I'm saying, Lawrence, is, with all due respect my friend, your deduction is incorrect, and it's not logical, okay?”

Herman Cain (1945) American writer, businessman and activist

referring to "This is Herman Cain!" recounting that Herman read about sit-ins and Freedom Rides, and followed his father's advice to "stay out of trouble".

Life , Books , Family , Question

“Logical knowledge is indirect and symbolic in its character. It helps us to handle and control the object and its workings.”

Sarvepalli Radhakrishnan (1888–1975) Indian philosopher and statesman who was the first Vice President and the second President of India

Internet Encyclopedia of Philosophy

Knowledge , Help

“As soon as a thought or word becomes a tool, one can dispense with actually ‘thinking’ it, that is, with going through the logical acts involved in verbal formulation of it. As has been pointed out, often and correctly, the advantage of mathematics—the model of all neo-positivistic thinking—lies in just this ‘intellectual economy.’ Complicated logical operations are carried out without actual performance of the intellectual acts upon which the mathematical and logical symbols are based. … Reason … becomes a fetish, a magic entity that is accepted rather than intellectually experienced.”

Max Horkheimer book Eclipse of Reason

Source: Eclipse of Reason (1947), p. 23.

Mathematics , Thinking

“Grow your tree of falsehood from a small grain of truth.
Do not follow those who lie in contempt of reality.Let your lie be even more logical than the truth itself,
So the weary travelers may find repose in the lie.”

Czeslaw Milosz (1911–2004) Polish, poet, diplomat, prosaist, writer, and translator

"Child of Europe" (1946), trans. Jan Darowski
Daylight (1953)

Truth , Lie , Travel , Tree

“If a city has a 30% Negro population, then it is logical to assume that Negroes should have at least 30% of the jobs in any particular company, and jobs in all categories rather than only in menial areas.”

Martin Luther King, Jr. (1929–1968) American clergyman, activist, and leader in the American Civil Rights Movement

from a 1968 Playboy magazine interview
1960s

“He was often, and much beyond reason, provoked by my failures in cases where success could not have been expected; but in the main his method was right, and it succeeded. I do not believe that any scientific teaching ever was more thorough, or better fitted for training the faculties, than the mode in which logic and political economy were taught to me by my father. Striving, even in an exaggerated degree, to call forth the activity of my faculties, by making me find out everything for myself, he gave his explanations not before, but after, I had felt the full force of the difficulties; and not only gave me an accurate knowledge of these two great subjects, as far as they were then understood, but made me a thinker on both.”

John Stuart Mill book Autobiography

Source: Autobiography (1873)

https://archive.org/details/autobiography01mill/page/28/mode/1up pp. 28–29

Training , Failure , Success , Knowledge

“Under my definition, a scientific theory is a proposed explanation which focuses or points to physical, observable data and logical inferences. There are many things throughout the history of science which we now think to be incorrect which nonetheless would fit that — which would fit that definition. Yes, astrology is in fact one.”

Michael J. Behe (1952) American biochemist, author, and intelligent design advocate

testimony in Kitzmiller v. Dover Area School District, trial transcript: day 11 http://www.talkorigins.org/faqs/dover/day11pm.html#day11pm132 (18 October 2005).

History , Thinking , Science

“In all my works.... I have always had recourse to one never-varying method. It consists in making the delineation of the objects represented heavily dependent on a system of necessities which itself looks strange. These necessities are sometimes due to the inappropriate and awkward character of the material used, sometimes to some strange obsessive notion [frequently changed for another]. In a word, it is always a matter of giving the person who is looking at the picture a startling impression that a weird logic has directed the painting of it, a logic to which the delineation of every object is subjected, is even sacrificed, in such a peremptory way that, curiously enough, it forces the most unexpected solutions, and, in spite of the obstacles it creates, brings out the desired figuration.”

Jean Dubuffet (1901–1985) sculptor from France

Quote of Dubuffet, in Peter Selz and Jean Dubuffet: The work of Jean Dubuffet, The Museum of Modern art, New York, 1962
1960-70's

Way , Change , Painting , Dependency

“The new art must be based upon science — in particular, upon mathematics, as the most exact, logical, and graphically constructive of the sciences.”

Albrecht Dürer (1471–1528) German painter, printmaker, mathematician, and theorist

As quoted in Dictionary of Scientific Biography (1970 - 1990) edited by M Steck.

Art , Mathematics , Science

“However, mass expulsion and even genocide began to make their appearance on the southern margins of Europe during and after World War I, as the Turks set about the mass extirpation of the Armenians in 1915 and, after the Greco Turkish war of 1911, expelled between 1.3 and 1.5 millions of Greeks from Asia Minor, where they had lived since the days of Homer.1 Subsequently Adolph Hitler, who was in this respect a logical Wilsonian nationalist, arranged to transfer Germans not living on the territory of the fatherland, such as those of Italian South Tyrol, to Germany itself, as he also arranged for the permanent elimination of the Jews.”

Eric Hobsbawm (1917–2012) British academic historian and Marxist historiographer

Source: Nations and nationalism since 1780 programme, myth, reality (1992), p. 133.

War , World , Appearance

“Pure rationality and limited rationality share a common perspective, seeing decisions as based on evaluation of alternatives in terms of their consequences for preferences. This logic of consequences can be contrasted with a logic of appropriateness by which actions are matched to situations by means of rules organized into identities.”

James G. March (1928–2018) American sociologist

James G. March (1994), A Primer on Decision Making: How Decisions Happen, p. 57

Decision

“For two things both to believe that snow is white, they need not to be physically similar in any specifiable way, but they must both be in a "functional" condition or state specifiable in the most functional language; they must share a Turing machine description according to which they are both in some particular logical state (which is roughly like two different computers having the same program and being in the same "place" in the program). … it is a type functionalism—each mental type is identifiable as a functional type in the language of Turing machine description.”

Daniel Dennett book Brainstorms

Source: Brainstorms (1978), p. xvi

Way

“Language in its original imaginative form maybe said to have expressiveness, but no meaning. About such language we cannot distinguish between what the speaker says and what he means… Language in its intellectualized form has both expressiveness and meaning. As language, it expressed a certain emotion. As symbolism, it refers beyond that emotion to the thought whose emotional charge it is… The progressive intellectualization of language, its progressive conversion by the work of grammar and logic into a scientific symbolism, thus represents not a progressive drying-up of emotion, but its progressive articulation and specialization. We are not getting away from an emotional atmosphere into a dry, rational atmosphere; we are acquiring new emotions and new means of expressing them.”

R. G. Collingwood (1889–1943) British historian and philosopher

Source: The Principles of Art (1938), p. 269

Imagination

“It is only logical for the translator to become a part of the world of the author.”

Ventseslav Konstantinov (1940–2019) Bulgarian writer and Translator

As quoted in "From Bach to Kafka, or... about temptation - An interview by Emil Bassat http://darl.eu/intervie/84_05_30.htm" in Sofia News (30 May 1984).

World , Parting

“They were the misfits of the world, the outcasts, for they deviated from the norm of humanity as established through all of history. Yet it was this very deviation which made them the hope of all mankind. Ordinary human beings—the kind of human beings who had brought the race this far—were not enough today. The ordinary humans had pushed the culture forward as far as they could push it. It had served its purpose; it had brought the ordinary human as far as he could go. Now the race evolved. Now new abilities had awoke and grown—exactly as the creatures of the Earth had evolved and specialized and then evolved again from that first moment when the first feeble spark of life had come into being in the seething chemical bath of a new and madcap planet.
Twisted brains, the normal people called them; magic people, dwellers of the darkness—and could anyone say no to this? For each people set its standards for each generation and these standards and these norms were not set by any universal rule, by no all-encompassing yardstick, but by what amounted to majority agreement, with the choice arrived at through all the prejudice and bias, all the faulty thinking and the unstable logic to which all intelligence is prone.”

Clifford D. Simak book Time is the Simplest Thing

Source: Time is the Simplest Thing (1961), Chapter 31 (pp. 233-234)

Life , People , World , Hope

“Volumes might be written upon the follies and imbecilities of great men. A full rounded man — a man of sterling sense and natural logic — is just as rare as a great painter, poet, or sculptor. If you tell your friend that he is not a painter, that he has no genius for poetry, he will probably admit the truth of what you say, without feeling that he has been insulted in the least. But if you tell him that he is not a logician, that he has but little idea of the value of a fact, that he has no real conception of what evidence is, and that he never had an original thought in his life, he will cut your acquaintance.”

Robert G. Ingersoll (1833–1899) Union United States Army officer

The Great Infidels (1881)

Life , Men , Truth , Feeling

“Sentiment was the easy thing. But logic reminded a man that some people insisted on living their neighbor’s lives, that some people were offensive.
There were people with moral codes they clung to and lived by, people who worshiped in what they held to be the only orthodox way, people who clung to some idea—some rock on which their lives rested. Well and good. But if they tried to inflict these reforms on their neighbors, patience could only go so far, and the tolerance of fanaticism lasts just so long.”

Algis Budrys (1931–2008) American writer

The Burning World, p. 57 (originally published in Infinity Science Fiction, July 1957)
The Unexpected Dimension (1960)

People , Way , Idea , Patience

“The problem of method … includes four main issuesː the possibility of an alternative to logic and causation, capable of overcoming the inadequacies of both rationalism and historicism; the link between this third method and causality; the connection between the meaning of an act for its agent and its meaning for an observer; and the relationship of systematic theory to historical understanding.”

Roberto Mangabeira Unger (1947) Brazilian philosopher and politician

Source: Law in Modern Societyː Toward a Criticism of Social Theory (1976), p. 245

Understanding , Problem

“The concept of absolute, hence (or whence) springs, in the moral field, the moral laws or norms, represent, in the field of knowledge, the principle of identity, which is the fundamental law of the thought; norms of logic springs from it, that govern the thought (or mind) in the field of science.”

African Spir (1837–1890) Russian philosopher

"Le concept de l'absolu, d'où découlent, dans le domaine moral, les lois ou normes morales, constitue, le principe d'identité, qui est la loi fondamentale de la pensée; il en découle les normes logiques qui régissent la pensée dans le domaine de la science."
Source: Words of a Sage : Selected thoughts of African Spir (1937), p. 59 [Hélène Claparède-Spir had underlined - the translator]

Law , Spring , Knowledge , Science

“The main thing is to resettle the Chukchi in the Ararat valley, and the Moldovans in Franz-Josef-Land, although it would be more logical to put the Austrians there.”

Yurii Andrukhovych book The Moscoviad

The Moscoviad
Source: The Moscoviad. Yuri Andrukhovych. Spuyten Duyvil, New York City. ISBN1933132523, p. 178

“We are no longer instinctively driven to apprehend, and lay to heart, what is Good and Lovely, but rather to inquire, as onlookers, how it is produced, whence it comes, whither it goes. Our favourite Philosophers have no love and no hatred; they stand among us not to do, nor to create anything, but as a sort of Logic mills, to grind out the true causes and effects of all that is done and created.”

Thomas Carlyle (1795–1881) Scottish philosopher, satirical writer, essayist, historian and teacher

1820s, Signs of the Times (1829)

Love , Heart

“If we were to take a newly arrived illegal alien, and enroll him in a typical Chicano Studies course, he would logically wish to return across the border as soon as possible.”

Victor Davis Hanson (1953) American military historian, essayist, university professor

2010s, 1984 Redux: Orwellian Illegal Immigration (2014)

Study

“The French symbolists had a special term to express their love for things that had lost their objective significance, namely, ‘spleen.’ The conscious, challenging arbitrariness in the choice of objects, its ‘absurdity’ and ‘perverseness,’ as if by a silent gesture discloses the irrationality of utilitarian logic, which it then slaps in the face in order to demonstrate its inadequacy with regard to human experience. And while making it conscious, by this shock, of the fact that it forgets the subject, the gesture simultaneously expresses the subject’s sorrow over his inability to achieve an objective order. Twentieth-century society is not troubled by such inconsistencies. For it, meaning can be achieved in only one way—service for a purpose.”

Max Horkheimer book Eclipse of Reason

Source: Eclipse of Reason (1947), p. 38.

Love , Way , Forgetting

“The enthronement of Christ over the minds of men is steadily going forward. His kingdom embraces the princes in the realm of mind. It embraces the nations of highest civilization. They are all beneath the cross. It is maintained by simple authority. Other mental monarchs rule by logic; Christ's word is law — it is satisfying to His subjects. His truth in the handsof His disciples, like the bread He broke upon the mountains, is an ample supply for the millions that gather at His table.”

Edward Thomson (1810–1870) American bishop

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 79.

Men , Truth , Law , Mountain

“There is, then, a logical priority about the arrangements, and logic has nothing to do with time.”

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

Source: Management Science (1968), Chapter 3, Quantified Insight, p. 74.

Time

“Logic cannot support the premise that health care is a right. Health care is a service that is administered by another human being with the requisite skills and knowledge. To claim that healthcare as a "right" is to claim a right to the services of the health-care provider. In effect, this means you are claiming a "right" to a portion of that person's life – both a portion of the time already spent developing his skills, and a portion of the time spent practicing those skills on you..”

Neal Boortz (1945) American author, journalist, and radio host

Source: "Socialized medicine in U.S. is inevitable!", WorldNetDaily, 2007-09-20 http://www.worldnetdaily.com/news/article.asp?ARTICLE_ID=34741,

Life , Health , Support , Knowledge

“Excessive military expenditures have their own logic and their own dynamic. The profit-driven character of the armaments industry may well undermine the otherwise legitimate aim of protecting the population from outside threats.”

Alfred de Zayas (1947) American United Nations official

Disarm and develop – UN expert urges win-win proposition for States and peoples
2014

“Creative insight is not the final link in a chain of reasoning. If it were that, it would not strike us as inspired in its origin. Intuition is not the end, but part of an ever-developing and ever-dynamic process of realization. There is continual system of “checks and balances” between intuition and the logical method of discursive reasoning. Cognitive intuitions are not substitutes for thought, they are challenges to intelligence. Mere intuitions are blind while intellectual work is empty. All processes are partly intuitive and partly intellectual. There is no gulf between the two.”

Sarvepalli Radhakrishnan (1888–1975) Indian philosopher and statesman who was the first Vice President and the second President of India

Internet Encyclopedia of Philosophy

Intelligence , Parting

“Both logically and historically the first point of attack is arbitrary government, and the first liberty to be secured is the right to be dealt with in accordance with law. A man who has no legal rights against another, but stands entirely at his disposal, to be treated according to his caprice, is a slave to that other.”

Leonard Trelawny Hobhouse (1864–1929) British sociologist

Source: Liberalism (1911), Chapter II, The Elements of Liberalism, p. 16.

Law

“Thousands — millions and billions — of animals are killed for food. That is very sad. We human beings can live without meat, especially in our modern world. We have a great variety of vegetables and other supplementary foods, so we have the capacity and the responsibility to save billions of lives. I have seen many individuals and groups promoting animal rights and following a vegetarian diet. This is excellent. Certain killing is purely a "luxury." … But perhaps the saddest is factory farming. The poor animals there really suffer. I once visited a poultry farm in Japan where they keep 200,000 hens for two years just for their eggs. During those two years, they are prisoners. Then after two years, when they are no longer productive, the hens are sold. That is really shocking, really sad. We must support those who are attempting to reduce that kind of unfair treatment. An Indian friend told me that his young daughter has been arguing with him that it is better to serve one cow to ten people than to serve chicken or other small animals, since more lives would be involved. In the Indian tradition, beef is always avoided, but I think there is some logic to her argument. Shrimp, for example, are very small. For one plate, many lives must be sacrificed. To me, this is not at all delicious. I find it really awful, and I think it is better to avoid these things. If your body needs meat, it may be better to eat bigger animals. Eventually you may be able to eliminate the need for meat. I think that our basic nature as human beings is to be vegetarian — making every effort not to harm other living beings. If we apply our intelligence, we can create a sound, nutritional program. It is very dangerous to ignore the suffering of any sentient being.”

Tenzin Gyatso (1935) spiritual leader of Tibet

Interview in Worlds in Harmony: Dialogues on Compassionate Action, Berkeley: Parallax Press, 1992, pp. 20-21.

People , World , Sadness , Food

“This is probably the fundamental dimension of 'ideology': ideology is not simply a 'false consciousness', an illusory representation of reality, it is rather this reality itself which is already to be conceived as 'ideological' - 'ideological' is a social reality whose very existence implies the non-knowledge of its participants as to its essence -that is, the social effectivity, the very reproduction of which implies that the individuals 'do not know what they are doing'. 'Ideological is not the false consciousness of a (social) being but this being itself in so far as it is supported by "false consciousness"'. Thus we have finally reached the dimension of the symptom, because one of its possible definitions would also be 'a formation whose very consistency implies a certain non-knowledge on the part of the subject': the subject can 'enjoy his symptom' only in so far as its logic escapes him - the measure of the success of its interpretation is precisely its dissolution.”

Slavoj Žižek book The Sublime Object of Ideology

The Sublime Object of Ideology (1989)

Support , Knowledge , Reality , Success

“What hope there is derives from Freud’s assumption that human nature is not so much a hierarchy of high-low, and good-bad, as his predecessors believed, but rather a jostling democracy of contending predispositions, deposited in every nature in roughly equal intensities. … Psychoanalysis is full of such mad logic; it is convincing only if the student of his own life accepts Freud’s egalitarian revision of the traditional idea of a hierarchical human nature.”

Philip Rieff (1922–2006) American sociologist

The Triumph of the Therapeutic (1966)

Life , Hope , Democracy , Idea

“Some have recently argued that pluralism by its very nature demands civic secularism. There seems to be no logical reason why respect for the beliefs of more than a quarter billion Americans, 90 percent of whom declare themselves to be religious, should require us now to eschew the public expression of religion, even in discussing political affairs that have moral foundations or implications.”

Francis George (1937–2015) Catholic cardinal

God in Action: How Faith in God Can Address the Challenges of the World (2011) Ch. 1 "God in American Public Life," p. 33.

Religion , Nature

“Nature, far from being logical, 'is perhaps entirely the excess of itself', smeared ash and flame upon zero, and zero is immense.”

Nick Land (1962) British philosopher

Source: The Thirst for Annihilation: Georges Bataille and Virulent Nihilism (1992), Chapter 6: "The rage of jealous time", p. 73

Nature

“This shared concern with continuity accounts for a good part of the affinity I feel with Schoenberg, an affinity I have openly claimed in drawing from him both the title and the subtitle of the present volume. To me, as to Schoenberg, such continuity constitutes important evidence that the essentially aesthetic act of constructing a 'text,' whether on paper or in one's professional life, has been subjected to rational restraints, in all the Kantian senses of 'rationality.' From this viewpoint, continuity is valued as a sign that a text has been carefully constructed to meet rigorous standards not only of formal coherence but also of logical precision and, espeically crucial, of moral scrupulousness.”

Rose Rosengard Subotnik (1942) American musicologist

Subotnik, Rose Rosengard (1991). Developing Variations: Style and Ideology in Western Music, p.xx. Minneapolis: University of Minnesota Press. .

Life , Feeling , Sense , Parting

“I've done my best, but the boy is unteachable. He doubts everything, and contests each point of theology as if it were required to meet the same tests of logic and consistency that prevail in the world of science.”
“In other words, he expects your doctrines to make sense.”
“He is unwilling to accept the idea that some things remain mysteries, comprehensible only to the mind of God. Ambiguity makes him saucy, and paradox causes open rebellion.”

Orson Scott Card (1951) American science fiction novelist

“An obnoxious child.”
Source: The Tales of Alvin Maker, Seventh Son (1987), Chapter 13.

God , World , Boy , Idea

“Logic chases truth up the tree of grammar.”

Willard van Orman Quine (1908–2000) American philosopher and logician

Philosophy of Logic (1970)
1970s

Truth , Tree

“We have tested, in matters where ordinary intelligence and knowledge are competent to judge, the logical methods and intellectual honesty of the foremost of those who in the name of science eliminate God and degrade man, taking from human life its highest dignity and deepest hope. Now, if in simple matters we find such confusion, such credulity, such violation of every canon of sound reasoning as we have found here, shall we blindly trust in deeper matters — in those matters which always have and always must perplex the intellect of man?
Let us rather, as I said in the beginning, not too much underrate our own powers in what is concerned with common facts and general relations. While we may not be scientists or philosophers we too are men. And as to things which the telescope cannot resolve, nor the microscope reveal, nor the spectrum analysis throw light on, nor the tests of the chemist discover, it is as irrational to accept blindly the dictum of those who say, "Thus saith science!"”

Henry George (1839–1897) American economist

as it is in things that are the proper field of the natural sciences to bow before the dictum of those who say, "Thus saith religion!"
Conclusion : The Moral of this Examination
A Perplexed Philosopher (1892)

Life , Men , God , Religion

“You must forgive me for continually coming back to the same thing; but I believe in the logical development of everything we see and feel through the study of nature and turn my attention to technical questions later.”

Paul Cézanne (1839–1906) French painter

Quote of 1906 from a letter; cited in Paul Cézanne, Letters ed. John Rewald, New York, Da Capro Press, 1995, p. 313
Quotes of Paul Cezanne, after 1900

Feeling , Forgiveness , Question , Nature

“Logic is justly considered the basis of all other sciences, even if only for the reason that in every argument we employ concepts taken from the field of logic, and that ever correct inference proceeds in accordance with its laws.”

Alfred Tarski (1901–1983) Polish-American logician

Introduction to Logic: and to the Methodology of Deductive Sciences. (1941/2013) Tr. Olaf Helmer, pp. 108-110.

Law , Science

“His [Christ’s] point of view, of the literal divine-son ship of every lowliest and most sinful and sinning spirit, committed him logically to the assertion of the implicit equality of all spirits with each other, far as concerns their moral powers and destination no matter what their actual and contingent state; and also of their potential equality with God. His doctrine may well be summarised in the consecrated phrase, usually applied only to himself, "The son of man is the son of God."”

George Holmes Howison (1834–1916) American philosopher

Source: The Limits of Evolution, and Other Essays, Illustrating the Metaphysical Theory of Personal Ideaalism (1905), The Right Relation of Reason to Religion, p.251

God , Christ

“The art of discovery is confused with the logic of proof and an artificial simplification of the deeper movements of thought results. We forget that we invent by intuition though we prove by logic.”

Sarvepalli Radhakrishnan (1888–1975) Indian philosopher and statesman who was the first Vice President and the second President of India

Internet Encyclopedia of Philosophy

Art , Forgetting

“To deduce the laws of the symbols of Logic from a consideration of those operations of the mind which are implied in the strict use of language as an instrument of reasoning.”

George Boole (1815–1864) English mathematician, philosopher and logician

Source: 1850s, An Investigation of the Laws of Thought (1854), p. 42

Law

“Purity" of and in art — any art, including music and dance — is an illusory notion, of course. It may be remotely conceivable or imaginable, but it can't be realized because it can't be recognized any more than a "pure" human being or a "pure" (or, for that matter, gratuitous) act can be. All the same, for Western art in its Modernist phase "purity" has been a useful idea and ideal, with a kind of logic to it that has worked, and still works, to generate aesthetic value and maintain aesthetic standards as nothing else in our specializing culture has over the last hundred-odd years.But this logic has also worked to exclude the decorative — the decorative insofar as it functions solely as decoration. It's as though aesthetic value, quality, could be preserved only by concentrating on "absolute" or "autonomous" art: thus on visual art — including even architecture — that held and moved and stirred the beholder as sheer decoration could not. Decoration is asked to be "merely" pleasing, "merely" embellishing, and the "functional" logic of Modernism leaves no room, apparently, for such "mereness.”

Clement Greenberg (1909–1994) American writer and artist

This is part of the pity of Modernism, one of the sacrifices it enjoins....
"Detached Observations" http://www.sharecom.ca/greenberg/detached.html, Arts Magazine (December 1976)
1970s

Art , Music , Imagination , Idea

“The members of the Vienna Circle (Moritz Schlick, Rudolf Carnap, Philipp Frank, Hans Hahn, Herbert Feigl, Fritz Waismann, Kurt Godel, Otto Neurath and others) are working out a ‘Logical Empiricism’. Following Ernst Mach and Poincaré, but above all Russell and Wittgenstein, all the sciences are treated uniformly. Carnap’s Logischer Aufbau der Welt (1928) shows in which direction future systematic work will move. Wittgenstein’s Tractatus Logico-Philosophicus (1921) clarified, among other things, the position of logic and mathematics; besides the statements that make additions to what is meaningful, there are the ‘tautologies’ that show us which transformations are possible within language. By its syntax the language of science excludes anything that is meaningless from the very beginning.”

Otto Neurath (1882–1945) austrian economist, philosopher and sociologist

Source: 1930s, "Physicalism" (1931), p. 52

Mathematics , Science , Future

“Beyond that void is a place
Where figments from bad dreams are banished
Childhood nightmares all come seeking
And adult logic nearly vanished”

Steve Kilbey (1954) British artist

Lyrics, Chaos

Dreams , Childhood

“And because this Experimental Science is wholly ignored by the general run of students, for that reason I can not convince people of its utility unless I show at the same time its excellence and its property. This science alone, then, knows how to test perfectly by experience what can be done by nature, what by the industry of art, what by imposture; what the incantations, conjurations, invocations, deprecations, sacrifices (which are magical devices) seek and dream of; and what is done in them, so that all falsity may be removed and that only the truth of art and nature be retained. This science alone teaches one to consider all the insanities of magicians, not that they may be confirmed but that they may be avoided, just as logic considers sophistical argument.”

Roger Bacon book Opus Majus

6th part Experimental Science, Ch.2 Tr. Richard McKeon, Selections from Medieval Philosophers Vol.2 Roger Bacon to William of Ockham
Opus Majus, c. 1267

People , Truth , Dreams , Art

“What would geometry be without Gauss, mathematical logic without Boole, algebra without Hamilton, analysis without Cauchy?”

George Frederick James Temple (1901–1992) British mathematician

100 Years of Mathematics: a Personal Viewpoint (1981)

Mathematics