这就是学习的意义。你突然以一种新的方式理解了你一生都理解的东西。

政策辩论应以严格的实证分析为基础。

只有掌握核心技术，才能立于不败之地。

You are enough just as you are.

To write is to rewrite, and to rewrite is to understand.

What is necessary to change a person is to change his awareness of himself.

艺术最大的敌人是缺乏限制。