The real danger is not that computers will begin to think like men, but that men will begin to think like computers.

We have to continually be jumping off cliffs and developing our wings on the way down.

宇宙的美在于它的复杂性和简单性。

I don't like to compare myself to others. I just try to be the best I can be.

种树的最佳时间是20年前；第二好的时间就是现在。