There is no man, however wise, who has not at some period of his youth said things, or lived in a way the consciousness of which is so unpleasant to him in later life that he would gladly, if he could, expunge it from his memory.

We will never run out of things to program as long as there is a single program around.

The only time success comes before work is in the dictionary.

理解自然的复杂性是终极挑战。

一个极其优秀的人。他没有敌人，而他的朋友也没有一个喜欢他的。