Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

We are all born mad. Some remain so.

唯一交到朋友的方法就是自己先成为朋友。

We must listen to the scientists and act on their warnings about marine ecosystems.

一个国家的力量源于其田地的肥沃和农民的智慧。#

一个不犯错的人通常什么也做不成。