As countries appear and disappear, then I began to ask, what makes countries successful? And it turns out, after a long slog through geographies and ethnicities and all kinds of variables, it's the ability to adapt and adopt, what Darwin talked about.

There are few jobs in the world that are more fun than being the head of Urban Development for a great and thriving city.

During a period of time when Italy is talking about splitting northern and southern Italy, France is talking about splitting with Corsica and Normandy, England is talking about splitting with Wales and Scotland and England. And it goes on and on and on.

It's actually very hard to find an area of the economy that doesn't fundamentally change in the measure that we are able to read and write life code.

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.

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.

The definition of who's literate and who's not keeps changing. So, in Neanderthal times, if you painted on a cave wall, that was enough to transmit how you hunt, how you eat, how you cook, how you dress, and we can read about that.