Leading in a complex world means recognizing the simple things you can do to make things better.

We still go out and elect people who we think are going to govern and better our interests. So we may not have the same confidence in the people we elect, but we still go out and elect them.

America cannot do most of what needs to be done alone. You need friends. And we have good friends around the world. We have friends with whom we share values in Europe and Asia - thanks to the forward march of democracy - in Latin America, in Africa, and increasingly in the Middle East.

Well, there's been plenty of ultimatums, and one thing that we better be very clear is that we can't continue to have the kind of defiance of the United Nations, the defiance of the international community that we've had.

We can't rely - or no country can rely on just a single personality to carry it forward. And so what the American founding fathers understood was that institutions were built for human imperfection not human perfection.

Every life is capable of greatness.

I don't like anything that's "just an escape." To me the best part of golf is that, unlike my tennis game, I can actually get better. I've probably reached my plateau in tennis, but in golf I have a lot of room for improvement. I really enjoy working on my game. I like practicing. I chart my rounds.