Mathematics is the language with which God has written the universe.

I'm not a role model... Just because I can sing doesn't mean I should raise your kids.

释义：过于强硬的弓弦容易断裂，过于锋利的刀口容易受损。惹祸往往是因为多嘴多舌，招致灾祸多是因为心肠狠毒。

P与NP问题是计算机科学中最重要的一个问题之一。