革命者可以失去一切：家庭、自由，甚至生命。但不能失去道德。

Life is too short to waste time on negativity.

We have to be careful not to become stylists.

"The power of fiction lies in its ability to make us feel less alone."

Money doesn't talk, it swears.

I have already carried out my duty. I have proved the Poincaré conjecture and I have nothing more to do in mathematics.