You don’t have to pee on an electric fence to learn not to do it.

死亡是少数几件只要躺下就能完成的事情之一。

Money and power don't change you, they reveal who you really are.

Wisdom acquisition is a moral duty. It’s not something you do just to advance in life. And there’s a corollary to that proposition which is very important. It means that you’re hooked for lifetime learning, and without lifetime learning you people are not going to do very well. You are not going to get very far in life based on what you already know.