A young man is a theory, an old man is a fact.
quote by Edgar Watson Howe
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Men who hold a theory of the Church which excludes from communion those whom they admit to have the Spirit of Christ simply proclaim that their theory is in flat contradiction to the spiritual fact.
quote by Roland Allen
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The fact - not theory - that evolution has occurred and the Darwinian theory as to how it occurred have become so confused in popular opinion that the distinction must be stressed.
quote by George G. Simpson
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I believe without exception that theory follows practice. Whenever there is a conflict between theory and practice, theory is wrong. As far as I'm concerned, we make theories for what people have done.
quote by David Baker
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Indeed, this epistemological theory of the relation between theory and experiment differs sharply from the epistemological theory of naive falsificationism.
quote by Imre Lakatos
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A theory is no more like a fact than a photograph is like a person.
quote by Edward W. Howe
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A theory is only as good as its assumptions. If the premises are false, the theory has no real scientific value. The only scientific criterion for judging the validity of a scientific theory is a confrontation with the data of experience.
quote by Maurice Allais
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Normal science does not aim at novelties of fact or theory and, when successful, finds none.
quote by Thomas Kuhn
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There are two barriers that often prevent communication between the young and their elders. The first is middle-aged forgetfulness of the fact that they themselves are no longer young. The second is youthful ignorance of the fact that the middle aged are still alive.
quote by Jessamyn West
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Science is organized common sense where many a beautiful theory was killed by an ugly fact.
quote by Thomas Huxley
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But the scientific importance of a change in knowledge of fact consists precisely in j its having consequences for a system of theory.
quote by Talcott Parsons
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An argument fatal to the communist theory, is suggested by the fact, that a desire for property is one of the elements of our nature.
quote by Herbert Spencer
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I grow daily to honour facts more and more, and theory less and less. A fact, it seems to me, is a great thing; a sentence printed, if not by God, then at least by the Devil.
quote by Thomas Carlyle
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A major fault, for example, is the fact that, along with the materialist principle, Darwin introduced into his theory of evolution reactionary Malthusian ideas.
quote by Trofim Lysenko
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Fundamental of Liar Chapter V: Fact
A lie with no fact is an ego
A lie with some fact is an argument
A lie with all fact is a plagiarism
A fact with no lie is a truth
A fact with some lie is a gossip
A fact with all lie is a fiction
poem by Maria Sudibyo
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But the fact a person denies that he is theorising is no reason for taking him at his word and failing to investigate what implicit theory is involved in his statements.
quote by Talcott Parsons
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Today, the theory of evolution is an accepted fact for everyone but a fundamentalist minority, whose objections are based not on reasoning but on doctrinaire adherence to religious principles.
quote by James D. Watson
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The theory of evolution is outstandingly the most important theory in biology.
quote by Mark Ridley, 1983
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The basic theory in twistor theory is not to add extra dimensions.
quote by Roger Penrose
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Today the theory of evolution is about as much open to doubt as the theory that the earth goes round the sun.
quote by Richard Dawkins
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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.
quote by Karl Popper
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