We are going to die, and that makes us the lucky ones. Most people are never going to die because they are never going to be born.

一个有纸、笔、橡皮擦并且坚持严格的行为准则的人，实质上就是一台通用图灵机。

追求理解是人类精神最高尚的追求。

"The function of freedom is to free someone else."

煤矿工人是美国工业实力的无名英雄。