Time is a great teacher, but unfortunately it kills all its pupils.

我们都是我们记忆的总和。

I've always been drawn to characters who are complex and have depth.

Happiness is not something you postpone for the future; it is something you design for the present.

We are all born mad. Some remain so.

控制的目的是使系统在存在不确定性和干扰的情况下仍能按期望的方式运行。