The greatest discovery of any generation is that a human being can alter his life by altering his attitude.

I don't believe in guilt, I believe in living on impulse as long as you never intentionally hurt another person.

Diversity of thought isn't just good ethics; it's good business strategy for complex energy challenges.

Nature doesn’t have waste—everything is food for something else.

自由不是让你想做什么就做什么，自由是教你不想做什么，就可以不做什么。

决定我们是否富有的，不是我们拥有的东西，而是我们没有也行的东西。

"Truth is not always beautiful, nor beautiful words the truth."

The only thing that makes life possible is permanent, intolerable uncertainty; not knowing what comes next.

"I believe that every child is an artist. The problem is how to remain an artist once we grow up."

All violence consists in some people forcing others, under threat of suffering or death, to do what they do not want to do.