Every discovery in physics opens the door to a new mystery.

I never really thought about being a director. I just wanted to be an actor. But as I got older, I realized that I wanted to have more control over the films I was in.

If you don't make mistakes, you're not trying hard enough.

Angry people are not always wise.

The best stock to buy is the one you already own.

没有什么是一成不变的！