Writing is like sex. First you do it for love, then you do it for your friends, and then you do it for money.

社会结构因此被定义为实际存在的社会关系的总网络。

The historian is a prophet looking backward.

Language is not just a means of communication; it is the house of being.

在数学中，发现的旅程和目的地一样重要。

People who have great relationships don’t do so because they have no problems. They have great relationships because they deal with their problems well.

十年树木，百年树人。