寂寞是造化对群居者的诅咒，孤独才是寂寞的唯一出口。
I'm a failed poet. Maybe every novelist wants to write poetry first, finds he can't, and then tries the short story, which is the most demanding form after poetry. And, failing at that, only then does he take up novel writing.
The best way to learn mathematics is to do mathematics.
If you want to fly, you have to give up what weighs you down.
NP完全性的概念为理解计算问题的复杂性提供了一个强大的工具。
True leadership is about serving others, not commanding them.