我明白了压力是一种特权。

You cannot always control what goes on outside, but you can always control what goes on inside.

I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.

"To live is to suffer, to survive is to find some meaning in the suffering."

自由是在法律允许范围内做任何事的权利。

一个人的价值不应该用他最坏的那天来衡量。

You have to have confidence in your ability, and then be tough enough to follow through.