The only way to learn mathematics is to do mathematics.

I think it's important to have a sense of humor about yourself and not take yourself too seriously.

我们在实现同情、利他和爱的人类潜能方面还有很长的路要走。

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

Mathematics is a way of thinking, not just a collection of facts.

自然规律是亘古不变的，不会因尧的仁德而存在，不会因桀的暴虐而消亡。

Monetary policy is 98% talk and 2% action.