数学中真正的挑战不是解决问题，而是提出正确的问题。

创新既需要创造力，也需要严格的测试。

把握你的20岁是为工作、爱情、幸福，甚至可能是为世界做的最简单但最具变革性的事情之一。

I don't want to be a great man. I want to be a good man.

I try to understand the place, its memory, its light, its materials, and then I try to find the right answer.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

Life is too short to waste time hating anyone.