The secret of success is learning how to use pain and pleasure instead of having pain and pleasure use you. If you do that, you’re in control of your life. If you don’t, life controls you.

一个词的意义在于它在语言中的使用。

色彩是我整日的痴迷、快乐和折磨。

Don't let anyone tell you that you can't do something.

The most important thing in mathematics is to have a good intuition.

I don't need a reason to be fearless.