Productivity is being able to do things that you were never able to do before.

Courage is not the absence of fear, but the triumph over it.

我不是传奇，我只是一个唱歌的人。

A good detective listens more than she talks.

好奇心是所有伟大数学发现背后的驱动力。

函数的概念在数学中是基础的，而λ演算提供了一种形式化这一概念的方法。