Art is the language of the soul.

"Doubt is useful for a while. We must all pass through the garden of Gethsemane. If Christ played with doubt, so must we."

Act as if what you do makes a difference. It does.

生活要朴素，情操要高尚。

Labor economics is fundamentally about understanding people’s choices and constraints.

一本书可以是一个朋友、一位老师和通往另一个世界的门。

最好的报复就是巨大的成功。