It's not fear that keeps me up. I mean, every generation has thought, this is the worst generation; the world's going to hell in a hand basket. The reality is, people are living longer, and they're living better.

There is a massive ecosystem that has to get built that looks like a biosphere. And the various parts of that biosphere better be there.

The thing that's really important to understand is, the last thing an empire traditionally does is drive itself into bankruptcy. You've seen that with the great empires.

The housing crisis may not be the worst thing that's happened to New York City because it was becoming impossible for some of the young doctors, for some of the young artists, for some of the people that make the city so special to be able to live here.

One of the things that really worries me, in part about Mexico, in part about Latin America, and in part about the Hispanic population in the U.S. and Canada. It's the lack of awareness of this whole science world.

It's not going to surprise me if our kids end up running on the beach in Florida when they're 100 years old on regrown body parts with a much higher quality of life than we can begin to imagine.

If I had a wand and could put statues in different places, one of the statues would go to a man who just died, called Norman Borlaug, who came up with the Green Revolution.