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First rate mathematicians choose first rate people, but second rate mathematicians choose third rate people.
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What is crucial is there be laws.
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Intuition makes much of it; I mean by this the faculty of seeing a connection between things that in appearance are completely different; it does not fail to lead us astray quite often.
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Rigour is to the mathematician what morality is to men.
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God exists since mathematics is consistent, and the Devil exists since we cannot prove it.