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Every man has a right to his own opinion, but no man has a right to be wrong in his facts.
"The only thing that is truly eternal is the human heart."
Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
The world owes all its onward impulses to men ill at ease; the happy man inevitably confines himself within ancient limits.
在热闹繁华中如果能够保持理性,才不至于迷失,也就省去了许多徒慕虚荣的苦心;困境中,在人生的低谷期,若能保持一份乐观,才会有一番更为真切的人生感悟。