“The cookbook gives a detailed description of ingredients and procedures but no proofs for its prescriptions or reasons for its recipes; the proof of the pudding is in the eating. … Mathematics cannot be tested in exactly the same manner as a pudding; if all sorts of reasoning are debarred, a course of calculus may easily become an incoherent inventory of indigestible information.”

Source: How to Solve It (1945), p. 219

Adopted from Wikiquote. Last update June 3, 2021. History

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George Pólya35

Hungarian mathematician 1887–1985

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