世界上充满了显而易见却无人注意的事物。

The act of writing is an act of courage.

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。

"We are all broken by something. We have all been hurt by life in some way. But we can be mended. We can be made whole again."

"Experience is simply the name we give our mistakes."

The most important part of teaching is to teach what it is to know.

海洋的恩赐是一种特权，而不是应得的权利。

Uncertainty is not the absence of information, but the presence of too much conflicting information.