Let me explain. I think it would be very unusual for anyone here, or anyone watching, to be envious of the Queen of England. Even though she is much richer than any of you are, and she's got a very large house, the reason why we don't envy her is because she's too weird.

The discovery of the accelerating expansion of the universe was a complete surprise.

We are communal histories, communal books. We are not owned or monogamous in our taste or experience.

生活就是关于成长和改变。当你停止成长，你就停止了生活。