The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.

道家的自然观不仅是一个物理概念，更是一个形而上的概念。

记忆是脆弱的，但它也是我们理解过去最强大的工具。

"You never really understand a person until you consider things from his point of view."

The art of leadership is saying no, not yes. It is very easy to say yes.

死者一直在倾听。死者一直在注视。