I don't have a plan. I never have. I just do what feels right at the time.

人对他自己建筑起堤防来。

Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.

数学不知道种族或地理边界；对于数学来说，文化世界是一个国家。