"The task of the modern educator is not to cut down jungles, but to irrigate deserts."

Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.

你加入这里不是为了酷，而是为了让别人酷。

没有什么比心中藏着一个未讲的故事更痛苦的了。

艺术不只是为艺术家，而是为每个人准备的。

数学证明的优雅常常反映了它所描述的算法的效率。