Quote: a theory can be tested by experience, but there is no way from experience to the setting up of a theory

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I have learned something else from the theory … up of such complicated equations. A theory can … a theory. Equations of such complexity as are … simple mathematical condition which determines the equations completely … [at least] almost completely. Once one has those sufficiently strong formal conditions, … case of the equations of gravitation it is … the invariance concerning the continuous transformation-group, determine the …   Google-1   Google-2

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Quote: complex equations can be found only through the discovery of a logically simply mathematical condition; e.g., general relativity

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Topic: scientific method (40 items)