207 Theory Quotes
Short theory quotes
As a rule we disbelieve all the facts and theories for which we have no use.
Gustave FlaubertGustave Flaubert quote #103 As a rule we disbelieve all the facts and theories for which we have no use.
William JamesWilliam James quote #47 There is such a difference between life and theory.
Anthony TrollopeAnthony Trollope quote #66 And there hasn't been much progress in Darwinism since [the life of Darwin].
Ben SteinBen Stein quote #16 We will now discuss in a little more detail the Struggle for Existence.
Charles DarwinCharles Darwin quote #23 All abstract sciences are nothing but the study of relations between signs.
Denis DiderotDenis Diderot quote #64 Music is organized sound.
Edgard VareseEdgard Varese quote #4 Theories that go counter to the facts of human nature are foredoomed.
Edith HamiltonEdith Hamilton quote #14
More theory quotes
In my view, only those who have had the courage to work through Lacan's anti-philosophy without faltering deserve to be called 'contemporary philosophers'.
Alain BadiouAlain Badiou quote #7 Just to prove that even the silliest idea can be pursued to its illogical conclusion, Legal Realism spawned Critical Legal Studies.
Alex KozinskiAlex Kozinski quote #5 We must never lose sight of the fact that the law has a moral foundation, and we must never fail to ask ourselves not only what the law is, but what the law should be.
Anthony KennedyAnthony Kennedy quote #7 Marx, as we have seen, solved it by declaring capital to be a different thing from product, and maintaining that it belonged to society and should be seized by society and employed for the benefit of all alike.
Benjamin TuckerBenjamin Tucker quote #12 The fundamental concept in social science is Power, in the same sense in which Energy is the fundamental concept in physics.
Bertrand RussellBertrand Russell quote #132 The Western approach to reality is mostly through theory, and theory begins by denying reality - to talk about reality, to go around reality, to catch anything that attracts our sense-intellect and abstract it away from reality itself. Thus philosophy begins by saying that the outside world is not a basic fact, that its existence can be doubted and that every proposition in which the reality of the outside world is affirmed is not an evident proposition but one that needs to be divided, dissected and analyzed. It is to stand consciously aside and try to square a circle.
Bruce LeeBruce Lee quote #47 I confess that Fermat's Theorem as an isolated proposition has very little interest for me, because I could easily lay down a multitude of such propositions, which one could neither prove nor dispose of.
Carl Friedrich GaussCarl Friedrich Gauss quote #12 The overwhelming majority of theories are rejected because they contain bad explanations, not because they fail experimental tests.
David DeutschDavid Deutsch quote #4 The two most far-reaching critical theories at the beginning of the latest phase of industrial society were those of Marx and Freud. Marx showed the moving powers and the conflicts in the social-historical process. Freud aimed at the critical uncovering of the inner conflicts. Both worked for the liberation of man, even though Marx's concept was more comprehensive and less time-bound than Freud's.
Erich FrommErich Fromm quote #9 Why do comparisons of words and tone poems (poetry and music) never take into consideration that the word is a mere signifier, but that the sound, aside from being a signifier, is also an object?
Franz GrillparzerFranz Grillparzer quote #2 Hoyle's enduring insights into stars, nucleosynthesis, and the large-scale universe rank among the greatest achievements of 20th-century astrophysics. Moreover, his theories were unfailingly stimulating, even when they proved transient.
Fred HoyleFred Hoyle quote #10 The whole machinery of our intelligence, our general ideas and laws, fixed and external objects, principles, persons, and gods, are so many symbolic, algebraic expressions. They stand for experience; experience which we are incapable of retaining and surveying in its multitudinous immediacy. We should flounder hopelessly, like the animals, did we not keep ourselves afloat and direct our course by these intellectual devices. Theory helps us to bear our ignorance of fact.
George SantayanaGeorge Santayana quote #8 The dogma of the Ghost in the machine.
Gilbert RyleGilbert Ryle quote #1 Perfect as the wing of a bird may be, it will never enable the bird to fly if unsupported by the air. Facts are the air of science. Without them a man of science can never rise.
Ivan PavlovIvan Pavlov quote #25 Our problem, from the point of view of psychology and from the point of view of genetic epistemology, is to explain how the transition is made from a lower level of knowledge to a level that is judged to be higher.
Jean PiagetJean Piaget quote #10 It is my guiding confession that I believe the greatest error in economics is in seeing the economy as a stable, immutable structure.
John Kenneth GalbraithJohn Kenneth Galbraith quote #62 In the course of a life devoted less to living than to reading, I have verified many times that literary intentions and theories are nothing more than stimuli and that the final work usually ignores or even contradicts them.
Jorge Luis BorgesJorge Luis Borges quote #96 What is true by lamplight is not always true by sunlight.
Joseph JoubertJoseph Joubert quote #94 Four predictions of the Big Bang Theory have now been verified - surely enough to quench even the most biased critics.
Joseph SilkJoseph Silk quote #6 One can always find inflationary models to explain whatever phenomenon is represented by the flavour of the month.
Joseph SilkJoseph Silk quote #7 The Jews are a race and not a religion. My goal was not to persecute the Jews but to enlighten Gentiles to put them on guard.
Julius StreicherJulius Streicher quote #20 Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve.
Karl PopperKarl Popper quote #4 Good tests kill flawed theories; we remain alive to guess again.
Karl PopperKarl Popper quote #55 In spite the mountains of books written about art, no precise definition of art has been constructed. And the reason for this is that the conception of art has been based on the conception of beauty.
Leo TolstoyLeo Tolstoy quote #55 Facts per se can neither prove nor refute anything. Everything is decided by the interpretation and explanation of the facts, by the ideas and the theories.
Ludwig von MisesLudwig von Mises quote #31 Great theories are expansive; failures mire us in dogmatism and tunnel vision.
Stephen Jay GouldStephen Jay Gould quote #106 Scientific theory is a contrived foothold in the chaos of living phenomena.
Wilhelm ReichWilhelm Reich quote #17 The catastrophist constructs theories, the uniformitarian demolishes them.
William WhewellWilliam Whewell quote #10 It is a test of true theories not only to account for but to predict phenomena.
William WhewellWilliam Whewell quote #11 I pass with relief from the tossing sea of Cause and Theory to the firm ground of Result and Fact.
Winston ChurchillWinston Churchill quote #12 Our best theories are not only truer than common sense, they make more sense than common sense...
David DeutschDavid Deutsch quote #2 Whatever their limitations, Freud and Marx developed complex and subtle theories of human nature grounded in their observation of individual and social behavior. The crackpot rationalism of free-market economics merely relies on an abstract model of how people 'must' behave.
Ellen WillisEllen Willis quote #10 'Huxleyism: the theory of the anthropoid descent of man and its inevitable consequences.'
Thomas Henry HuxleyThomas Henry Huxley quote #82 Where does one start with a theory of man if the theory of man as an organism in an environment doesn't work and all the attributes of man which were accepted in the old modern age are now called into question: his soul, mind, freedom, will, Godlikeness? There is only one place to start: the place where man's singularity is there for all to see and cannot be called into question, even in a new age in which everything else is in dispute. That singularity is language... [citation needed]
Walker PercyWalker Percy quote #13 The absolute and static were even taken over by such dynamically oriented psychological schools as the Freudian in the form of the permanent unconscious ideas. In Jung, the unconscious psychic life was enlarged to the static 'racial unconscious' and to the static 'collective unconscious'. Along with the static viewpoint, these psychologies took over the idea of guilt, even after their separation from philosophy. In so doing, they fell into a cul de sac from which there was no way out.
Wilhelm ReichWilhelm Reich quote #56 In theory there is no difference between theory and practice. In practice there is.
Yogi BerraYogi Berra quote #31 Proudhon is the master of us all.
P. J. ProudhonP. J. Proudhon quote #23 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 EinsteinAlbert Einstein quote #73 Le cinema substitue a notre regard un monde qui s'accorde a nos desirs
Andre BazinAndre Bazin quote #1 ...when the experiment was attempted by Michelson and Morley it failed, thus showing that space and time assumed in the picture were not true to the facts of nature. ...the pattern of events was the same whether the world stood at rest in the supposed ether, or had an ether wind blowing through it at a million miles an hour. It began to look as though the supposed ether was not very important in the scheme of things... and so might as well be abandoned. But if the bell-rope is to be discarded, what is to ring the bell?
James JeansJames Jeans quote #8 I may illustrate this by two very different examples of human behaviour: that of a man who pushes a child into the water with the intention of drowning it; and that of a man who sacrifices his life in an attempt to save the child. Each of these two cases can be explained with equal ease in Freudian and in Adlerian terms. According to Freud the first man suffered from repression (say, of some component of his Oedipus complex), while the second man had achieved sublimation. According to Adler the first man suffered from feelings of inferiority (producing perhaps the need to prove to himself that he dared to commit some crime), and so did the second man (whose need was to prove to himself that he dared to rescue the child). I could not think of any human behaviour which could not be interpreted in terms of either theory. It was precisely this fact - that they always fitted, that they were always confirmed - which in the eyes of their admirers constituted the strongest argument in favour of these theories. It began to dawn on me that this apparent strength was in fact their weakness.
Karl PopperKarl Popper quote #44 The World According to Peter Drucker Jack Beatty, The Free Press, 1998
Peter F. DruckerPeter F. Drucker quote #87 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 FreundPeter Freund quote #2 If the facts don't fit the theory, change the facts.
Albert EinsteinAlbert Einstein quote #204 The theory community, myself included - became rather troubled about the particle.
Bob JaffeBob Jaffe quote #1 There never comes a point where a theory can be said to be true. The most that one can claim for any theory is that it has shared the successes of all its rivals and that it has passed at least one test which they have failed.
Alfred AyerAlfred Ayer quote #4 'Big Bang' theory
Fred HoyleFred Hoyle quote #1 'If...Berg departs so radically from tradition, through his substitution of a symmetrical partitioning of the octave for the asymmetrical partionings of the major/minor system, he departs just as radically from the twelve-tone tradition that is represented in the music of Schoenberg and Webern, for whom the twelve-tone series was always an integral structure that could be transposed only as a unit, and for whom twelve-tone music always implied a constant and equivalent circulation of the totality of pitch classes.'
Alban BergAlban Berg quote #1 No battle can be won in the study, and theory without practice is dead.
Alexander SuvorovAlexander Suvorov quote #6 All the world over and at all times there have been practical men, absorbed in 'irreducible and stubborn facts': all the world over and at all times there have been men of philosophic temperament, who have been absorbed in the weaving of general principles.
Alfred North WhiteheadAlfred North Whitehead quote #10 The consequences of a plethora of half-digested theoretical knowledge are deplorable.
Alfred North WhiteheadAlfred North Whitehead quote #21 A precise language awaits a completed metaphysics.
Alfred North WhiteheadAlfred North Whitehead quote #40 No theory is good unless it permits, not rest, but the greatest work. No theory is good except on condition that one use it to go on beyond.
Andre GideAndre Gide quote #11 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 EddingtonArthur Stanley Eddington quote #7 If someone points out to you that your pet theory of the universe is in disagreement with Maxwell's equations - then so much the worse for Maxwell's equations. If it is found to be contradicted by observation - well, these experimentalists do bungle things sometimes. But if your theory is found to be against the second law of thermodynamics I can give you no hope; there is nothing for it but to collapse in deepest humiliation.
Arthur Stanley EddingtonArthur Stanley Eddington quote #16 Schrodinger's wave-mechanics is not a physical theory, but a dodge - and a very good dodge too.
Arthur Stanley EddingtonArthur Stanley Eddington quote #18 There is no art when one does something without intention.
Duke EllingtonDuke Ellington quote #29 Linear Time is wrong and suicidal.
Gene RayGene Ray quote #5 I like to think of music as an emotional science.
George GershwinGeorge Gershwin quote #11 I firmly believe people have hitherto been a great deal too much taken up about doctrine and far too little about practice. The word doctrine, as used in the Bible, means teaching of duty, not theory. I preached a sermon about this. We are far too anxious to be definite and to have finished, well-polished, sharp-edged systems - forgetting that the more perfect a theory about the infinite, the surer it is to be wrong, the more impossible it is to be right.
George MacDonaldGeorge MacDonald quote #1 Experience without theory is blind, but theory without experience is mere intellectual play.
Immanuel KantImmanuel Kant quote #46 I wish we could derive the rest of the phenomena of nature by the same kind of reasoning from mechanical principles; for I am induced by many reasons to suspect that they may all depend upon certain forces by which the particles of bodies, by some causes hitherto unknown, are either mutually impelled towards each other, and cohere in regular figures, or are repelled and recede from each other; which forces being unknown, philosophers have hitherto attempted the search of nature in vain; but I hope the principles here laid down will afford some light either to that or some truer method of philosophy.
Isaac NewtonIsaac Newton quote #18 Comedy itself is based upon very old principles of which I can readily name seven. They are, in short: the joke, exaggeration, ridicule, ignorance, surprise, the pun, and finally, the comic situation.
Jack BennyJack Benny quote #15 Abstract propositions should never be discussed by a legislative body.
James BuchananJames Buchanan quote #10 Dear friend, all theory is gray, And green the golden tree of life.
Johann Wolfgang von GoetheJohann Wolfgang von Goethe quote #68 The book, as it stands, seems to me to be one of the most frightful muddles I have ever read, with scarcely a sound proposition in it beginning with page 45 [Hayek provided historical background up to page 45; after that came his theoretical model], and yet it remains a book of some interest, which is likely to leave its mark on the mind of the reader. It is an extraordinary example of how, starting with a mistake, a remorseless logician can end up in bedlam.
John Maynard KeynesJohn Maynard Keynes quote #18 Philosophy is nothing but discretion.
John SeldenJohn Selden quote #12 There is nothing more practical than a good theory.
Leonid BrezhnevLeonid Brezhnev quote #1 The aim of philosophy is to erect a wall at the point where language stops anyway. (p.187)
Ludwig WittgensteinLudwig Wittgenstein quote #44 Philosophy is not a theory but an activity.
Ludwig WittgensteinLudwig Wittgenstein quote #127 [The steady-state theory] was a minority view, but [Hoyle] and a few like-minded theorists were able to keep the plate spinning for years. Another Cambridge luminary, Martin Ryle, finally brought it crashing down. An irascible, hardheaded experimenter, Ryle thought theorists like Hoyle were daffy. In a colloquium on sunspots, Mitton reports, Ryle became so incensed by Hoyle's speculations that he dashed to the blackboard and angrily erased the equations.
Martin RyleMartin Ryle quote #1 'Naturally, since I am not concerned with normative allegations, I cannot be concerned here with the invocation of the overtone series as a 'natural' phenomenon, and that application of equivocation which then would label as 'un-natural' (in the sense, it would appear, of morally perverse) music which is not 'founded' on it. Now, what music, in what sense, ever had been founded on it?'
Milton BabbittMilton Babbitt quote #4 It appears to me that the subject of music, from Machaut to Boulez, has always been its construction. Melodies of 12-tone rows just don't happen. They must be constructed....To demonstrate any formal idea in music, whether structure or stricture, is a matter of construction, in which the methodology is the controlling metaphor of the composition...Only by 'unfixing' the elements traditionally used to construct a piece of music could the sounds exist in themselves--not as symbols, or memories which were memories of other music to begin with.
Morton FeldmanMorton Feldman quote #3 We are all agreed that your theory is crazy. The question that divides us is whether it is crazy enough to have a chance of being correct.
Niels BohrNiels Bohr quote #6 Anyone who is not shocked by quantum theory has not understood it.
Niels BohrNiels Bohr quote #14 This same philosophy is a good horse in the stable, but an arrant jade on a journey.
Oliver GoldsmithOliver Goldsmith quote #44 Theories are lies that help us to see the truth.
Pablo PicassoPablo Picasso quote #38 It seems that if one is working from the point of view of getting beauty in one's equations, and if one has really a sound insight, one is on a sure line of progress. If there is not complete agreement between the results of one's work and experiment, one should not allow oneself to be too discouraged, because the discrepancy may well be due to minor features that are not properly taken into account and that will get cleared up with further development of the theory.
Paul DiracPaul Dirac quote #3 Aliens invade the earth and threaten to obliterate it in a year's time unless human beings can find the Ramsey number for red five and blue five. We could marshal the world's best minds and fastest computers, and within a year we could probably calculate the value. If the aliens demanded the Ramsey number for red six and blue six, however, we would have no choice but to launch a preemptive attack.
Paul ErdosPaul Erdos quote #1 Science means simply the aggregate of all the recipes that are always successful. All the rest is literature.
Paul ValeryPaul Valery quote #9 Group selection theory would therefore predict a tendency to evolve towards an all-dove conspiracy ... But the trouble with conspiracies, even those that are to everybody's advantage in the long run, is that they are open to abuse.
Richard DawkinsRichard Dawkins quote #22 Very often in science one finds that there are ideas in the air, and lots of people hold them, but they don't even realise they hold them. The person who can crystallize them, and lay out not only the central idea but its implications for future scientific research can often make a tremendous contribution. And I think that's what 'The Selfish Gene' did. Lots of scientists, they'd been Darwinians all their lives, but they'd been inarticulate Darwinians. And now they really understood what was foundational to Darwinism and what was peripheral. And once you understand what is foundational, then you begin to deduce conclusions.
Richard DawkinsRichard Dawkins quote #132 I've never thought much of Joe Nye's writings on soft power.
Richard PerleRichard Perle quote #5 Be reverent before the dawning day. Do not think of what will be in a year, or in ten years. Think of to-day. Leave your theories. All theories, you see, even those of virtue, are bad, foolish, mischievous. Do not abuse life. Live in to-day. Be reverent towards each day. Love it, respect it, do not sully it, do not hinder it from coming to flower. Love it even when it is gray and sad like to-day. Do not be anxious. See. It is winter now. Everything is asleep. The good earth will awake again. You have only to be good and patient like the earth. Be reverent. Wait. If you are good, all will go well. If you are not, if you are weak, if you do not succeed, well, you must be happy in that. No doubt it is the best you can do. So, then, why will? Why be angry because of what you cannot do? We all have to do what we can. . . . Als ich kann.'
Romain RollandRomain Rolland quote #8 And then there's the libertarian Congressman Ron Paul who seems like your uncle the bartender who has a Big Theory about everything: some of his ideas are brilliant, others weird. He rates a mention because his singular moment of weirdness -- proposing that al-Qaeda attacked on Sept. 11 because the U.S. had been messing around in the Middle East, bombing Iraq -- offered Giuliani a historic slam dunk... But Giuliani was having a good debate even before he reduced Paul to history.
Ron PaulRon Paul quote #101 If Edison had a needle to find in a haystack, he would proceed at once with the diligence of the bee to examine straw after straw until he found the object of his search. ... I was a sorry witness of such doings, knowing that a little theory and calculation would have saved him ninety percent of his labor.
Thomas Alva EdisonThomas Alva Edison quote #39 Thought and theory must precede all salutary action; yet action is nobler in itself than either thought or theory.
Virginia WoolfVirginia Woolf quote #45 Political institutions are a superstructure resting on an economic foundation. The Three Sources and Three Constituent Parts of Marxism (1913)
Vladimir LeninVladimir Lenin quote #58 From the vulgar bourgeois standpoint the terms of dictatoship and democracy are mutually exclusive. Failing to understand the theory of class struggle and accustomed to seeing in the political arena the petty squabbling of the various bourgeois circles and coteries, the bourgeois understands by dictatorship the annulment of all liberties and guarantees of democracy, arbitrariness of every kind, and every sort of abuse of power, in a dictator's personal interests.
Vladimir LeninVladimir Lenin quote #64 When we say 'the state,' the state is we, it is we, it is the proletariat, it is the advanced guard of the working class.
Vladimir LeninVladimir Lenin quote #67 The legislator should keep two things constantly before his eyes:-1. The pure theory developed to its minutest details; 2. The particular condition of actual things which he designs to reform.
Wilhelm von HumboldtWilhelm von Humboldt quote #22 It is the principle of necessity towards which, as to their ultimate centre, all the ideas advanced in this essay immediately converge. In abstract theory the limits of this necessity are determined solely by considerations of man's proper nature as a human being; but in the application we have to regard, in addition, the individuality of man as he actually exists. This principle of necessity should, I think, prescribe the grand fundamental rule to which every effort to act on human beings and their manifold relations should be invariably conformed. For it is the only thing which conducts to certain and unquestionable results. The consideration of the useful, which might be opposed to it, does not admit of any true and unswerving decision.
Wilhelm von HumboldtWilhelm von Humboldt quote #23