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I don't want to be as good as I was, I want to be better than I was.

Every time we teach a child something, we keep him from inventing it himself.

La nuit est un conseiller plus fidèle que le jour.

Life can only be understood backwards; but it must be lived forwards.

The problem, as I see it, is that you’ve been told to believe that what you do is of the utmost importance. But that’s all nonsense.

追求數學真理需要直覺和嚴謹。

When you live for others' opinions, you are dead.