Courage is not the absence of fear, but the triumph over it.

I like to tell a story and not explain it. I like to leave it open-ended.

The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.

I'm not afraid of dying, I'm afraid of not trying.

生物学的美在于它的复杂性和解决方案的优雅。

Sex is the consolation you have when you can't have love.

成功不要紧，失败不致命。继续前行的勇气，才最可贵。