I think the most important thing is to be true to yourself and to be honest with yourself.

The world is like a chessboard， whereon we may see a living knight， but we cannot see a living chess.

True leadership in aggregates means balancing productivity with planetary responsibility.

People say misery loves company, but I think freedom does too.

每一个数学问题都是一个等待解决的谜题，每一个解答都是向理解现实结构迈进的一步。

科学应当为人类服务，而不是反过来。