我认为数学之所以有价值，是因为它具有这种令人难以置信的结构，你可以探索和发现。

The essence of mathematics lies in its freedom.

There is no such thing as a quality problem. There are only problems of people not doing what they are supposed to do.

True leaders are those who can foresee the future and plan ahead.

生命太短暂，不能浪费时间恨任何人。