Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

Genius... means little more than the faculty of perceiving in an unhabitual way.

自由是心灵的状态，获取它的最好方式是培育它。

行动是正确的，因为它们倾向于促进幸福；错误是因为它们倾向于产生与幸福相反的结果。

表达对人生无常的感悟，认为聚散悲欢皆有缘由

每天早上我醒来时，躺着的不是我的床，住的不是我的房子，过着不是我自己的人生。

I'm really excited about the future. I think the best is yet to come.