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数学家的工作永无止境;总有新的问题要问,新的谜题要解。
A mathematician's work is never done; there are always new questions to ask and new mysteries to solve.
Be the change you wish to see in the world.
The loss of money is the least of all losses, but the loss of confidence is the greatest of all.
译文:对于天下的士人,最可贵的是能够排除忧患,消除纷争,解决困难,而不去索要任何回报。