The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

I'm not a businessman, I'm a business, man.

The best way to get out of a situation is to never get into it in the first place.

数学家研究纯数学不是因为它有用；他研究它是因为他喜欢它，他喜欢它是因为它美丽。

我不敢说数学和疯狂之间有直接关系，但毫无疑问，伟大的数学家都具有狂热的特质。