The secret of change is to focus all of your energy not on fighting the old, but on building the new.

做一个世界的水手，游遍所有的港口。

The task must be made difficult, for only the difficult inspires the noble-hearted.

追求数学真理是一项既个人又普遍的努力。

我坚信，成功企业家与非成功企业家的区别有一半在于纯粹的毅力。