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The elegance of a mathematical proof is in its simplicity and clarity.

研究的多樣性會帶來更強大的解決方案。

Every detective carries his own darkness.

我不相信任何事，而這是我唯一相信的事。

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.