I never doubted myself. I knew that I was going to be something.

最终，重要的不是你生命中的岁月，而是你岁月中的生命。

自由不是任何人可以给予的东西。自由是人们夺取的，人们有多想要自由，就有多自由。

When you're depressed, It always helps to lean your head on your arm. Arms like to feel useful.

Stay Hungry. Stay Foolish. And I have always wished that for myself. And now, as you graduate to begin anew, I wish that for you. 

A mathematician is a maker of patterns, like a painter or a poet.

世界上充满了显而易见的事情，却没人注意到。