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.

不懂得如何去爱却去爱，会伤害我们所爱的人。

You can do anything you set your mind to, man.

Live within your income and save so you can invest. Learn what you need to learn.

人类思维的一个重大缺陷在于：我们习惯关注高频事件，却忽视了那些罕见但影响巨大的事件。