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Sometimes you just have to pick yourself up and carry on.

——1998年3月4日接受外界采訪

沉默可能是共謀。

領導力不是掌控，而是關懷那些托付給你的人。

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.