When you go and you tour Europe, or you go and you tour Egypt, or you go and you tour Iraq, or you go and you tour Afghanistan, or India, or whatever. Governments get to a point where they're illegitimate because people just give up on them as far as being leaders who have their country's interests at heart.

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

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.

There's a creativity, a power, an energy, an ability to do things unlike any other period in history. It's a little bit like sitting in the Renaissance, but multiplied a thousand-fold.

It's not completely inconceivable that someday you'll be able to download your own memories.

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.

I've always been interested in why countries appear and disappear. And the curious thing is how often it happens.