We are each our own devil, and we make this world our hell.

Life is a play, and we must play our parts well.

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。

Ah, make the most of what we yet may spend, Before we too into the Dust descend; Dust into Dust, and under Dust to lie, Sans Wine, sans Song, sans Singer, and—sans End!

"Memory is the only paradise from which we cannot be expelled."

在亚洲的中心，大自然创造了一个属于自己的世界，未经人类染指。