I'm not afraid to fall, because I know I'll get back up.

One’s attitude to oneself is the single most important factor in living a long and reasonably happy life.

集合起一百个伟大头脑，就会得到一个大傻瓜。

The only person you are destined to become is the person you decide to be.

学习数学的唯一方法就是做数学。