不要害怕失败；害怕不去尝试。

All violence consists in some people forcing others, under threat of suffering or death, to do what they do not want to do.

The best books are those that make you see the world anew.

不管前方的路有多苦，只要走的方向正确，不管多么崎岖不平，都比站在原地更接近幸福。

数学发现的过程不是关于到达目的地，而是关于旅程本身。