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最好的数学不仅严谨,而且优雅。
The best mathematics is not just rigorous; it is also elegant.
The intelligence of that creature known as a crowd is the square root of the number of people in it.
你不能希望在不改善个人的情况下建立一个更好的世界。为此,我们每个人都必须为自己的改进而努力,同时也要为全人类承担共同的责任,我们的特殊职责是帮助那些我们认为我们最有用的那些人。
The condition of man... is a condition of war of everyone against everyone.