Change is good.

每一个词都是一个世界。

The theory of automorphic forms is a central subject in modern number theory.

The older I get, the more I realize how little I know.

领导力就是激励人们去做他们从未想过自己能做的事情。

The concept of legal validity is crucial for understanding the nature of law.

我不是那种会让我的球迷失望的人。