质量不是权利；它是一种特权。

一个问题如果在计算机上可以快速解决，那么它属于P类问题；如果一个解可以快速验证，那么它属于NP类问题。

To achieve satisfactory investment results is easier than most people realize; to achieve superior results is harder than it looks.

一本优秀的传记是过去与现在之间的桥梁。