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The real problem is not whether machines think but whether men do.
The power of mathematics lies in its generality and abstraction.
Never stop asking questions—that’s where the answers begin.
The beauty of mathematics lies in its ability to simplify the complex.
The only phrase I've ever disliked is, 'Why, we've always done it that way.' I always tell young people, 'Go ahead and do it. You can always apologize later.'
The past is always tense, the future perfect.