All oppression creates a state of war.

As you grow older, you will discover that you have two hands, one for helping yourself, the other for helping others.

The best way to create interest in a subject is to render it worth knowing, which means to make the knowledge usable.

我们正从信息稀缺的时代转向信息丰富的时代，挑战不再是找到信息，而是管理信息。

记忆不仅是个人的事情，也是集体的事情。