The thing that keeps me most awake is the desire and curiosity to learn more.

The Americas has been a relatively stable continent. The last truly new border we have is Panama in 1903.

When you brought the Industrial Revolution in, all of a sudden India and China went from being the dominant global powers to being powers dominated by those who understood how to apply this new technology.

We're beginning to enter an era where it gets really cheap and really fast to begin to do things like make fuels, and make textiles, and make extra teeth for ourselves. And we're beginning to think about how we regrow our bladders.

When you brought the digital revolution in, all of a sudden, you could build a country like Singapore and take that country, which had the income per capita of Ghana in 1965, and make it something similar to the United States in one generation.

Cities are magical things. You know the energy in them. You have to walk the streets in any borough here and you can see between what was in this city in the 1970's and where it is today and how much more energy there is and how much more just sheer.

The difference between people who can read and write and those who can't is just absolutely astronomical.