Not only are facts and theories in constant disharmony, they are never as neatly separated as everyone makes them out to be.
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Pg. 66Paul Karl Feyerabend
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The system becomes more coherent as it is further extended. The elements which we require for explaining a new class of facts are already contained in our system. Different members of the theory run together, and we have thus a constant convergence to unity. In false theories, the contrary is the case.
William Whewell
Theories without facts may be barren, but facts without theories are meaningless.
Kenneth Boulding
Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts do not go away while scientists debate rival theories for explaining them. Einstein's theory of gravitation replaced Newton's, but apples did not suspend themselves in mid-air pending the outcome. And human beings evolved from apelike ancestors whether they did so by Darwin's proposed mechanism or by some other, yet to be discovered. [...] Evolutionists make no claim for perpetual truth, though creationists often do (and then attack us for a style of argument that they themselves favor). In science, “fact” can only mean “confirmed to such a degree that it would be perverse to withhold provisional assent.” I suppose that apples might start to rise tomorrow, but the possibility does not merit equal time in physics classrooms.
Stephen Jay Gould
Facts are constituted by older ideologies, and a clash between facts and theories may be proof of progress.
Paul Karl Feyerabend
Prentice: It's a fascinating theory, sir, and cleverly put together. Does it tie in with known facts?
Rance: That need not cause us undue anxiety. Civilizations have been founded and maintained on theories which refused to obey facts.Joe Orton
Feyerabend, Paul Karl
Feynman, Richard
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