"The most dangerous prisons are those we build in our minds."

孔子说：“不在那个位置上，就不要想那个位置上的事。”

Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something and that this thing must be attained.

A writer is someone who can make a riddle out of an answer.

数学家的模式，就像画家或诗人的模式一样，必须是美丽的；思想，就像颜色或文字一样，必须以和谐的方式结合在一起。

每一个数学问题都是通向新理解世界的窗口。

伟大不是独自实现的，而是通过团队合作建立的。