The worth of a mental process is in its service to life.

The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.

The most important part of teaching is to teach what it is to know.

真正的创新来自于对传统的深刻理解，从而能够恰当地打破它。

我不是一个喜欢平常的人。