Leadership is about making the tough decisions and standing by them, even when they're unpopular.

数学研究是具体与抽象之间不断的对话。

The stage is where I feel the most free.

爱是一种痛苦。如果你感觉不到痛苦，那就不是爱。

You must not think that what is hard for you to master is humanly impossible； and if it is humanly possible， consider it to be within your reach.

A public-opinion poll is no substitute for thought.

I'm not perfect, but I'm perfectly me.

领导力不是掌控，而是关怀那些托付给你的人。

祖国是祭坛，不是基座。