人不是为失败而生。一个人可以被毁灭，但不能给打败。
But man is not made for defeat. A man can be destroyed but not defeated.
NP完全性不仅仅是一个理论上的好奇心；它对实际计算有着深远的影响。
释义：在昏暗不明的环境中，若仍能保持光明的心境，内心就能像青天白日一样明亮无染。
在石材行业，细节成就完美，而完美不是细节。
The study of economics is ultimately the study of human behavior and its consequences.
The only way to discover the limits of the possible is to go beyond them into the impossible.
In mathematics, the art of proposing a question must be held of higher value than solving it.