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过去从未死去。它甚至不是过去。
唯一能让你成为冠军的是你的专注。
In mathematics, the art of proposing a question must be held of higher value than solving it.
真正的数学家始终是学生,永远在学习。
If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."