数学家的模式，就像画家或诗人的模式一样，必须是美丽的。

战斗越艰难，胜利就越甜蜜。

What's terrible is to pretend that second-rate is first-rate. To pretend that you don't need love when you do; or you like your work when you know quite well you're capable of better.

做你自己，没有人比你更好。