世间没有什么能抵消春天的忧愁，不如对着苍天痛哭一场作罢。

种一棵树最好的时间是20年前，第二好的时间是现在。

I don’t follow rules. I follow my instincts.

I think that the most interesting art is the art that makes you think about what you're looking at.

In mathematics, the simplest questions often lead to the most profound discoveries.