Mathematics is the most beautiful and most powerful creation of the human spirit.

睡在哪里不都是睡在夜里。

A leader should have higher grit and tenacity, and be able to endure what the employees can't.

"Kids are the toughest audience, but also the most rewarding."

名誉是一件无聊的骗人的东西；得到它的人未必有什么功德，失去它的人也未必有什么过失。