Collaboration in mathematics is essential; the exchange of ideas leads to breakthroughs that no single mind could achieve alone.

投资者的主要问题——甚至他最坏的敌人——可能就是他自己。

我不是一个回头看的人。我总是向前看。

Pour yourself a drink, put on some lipstick, and pull yourself together.

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

I'm the worst thing since Elvis Presley to do black music so selfishly.