Just like I described in health care, yeah, somebody comes in, they got new ideas, maybe ideas that are completely opposite of my ideas. Maybe some of it goes, maybe some of that progress goes back. Maybe they think of some things we didn't think of, and so in some other areas - we can learn something.

The dollar is the reserve currency of the world.

I thought I could start over, you see. But now I know you can never start over. Not really. You think you have control, but you are like a fly in somebody else's web. Sometimes I think that's why I like accounting. All day, you are only dealing with numbers. You add them, multiply them, and if you are careful, you will always have a solution. There's a sequence there. An order. With numbers, you can have control.

Ensuring that the US continues to lead the world in science and technology will be a central priority for my administration.

America is not the crude stereotype of a self-interested empire. Given our interdependence, any world order that elevates one nation or group of people over another will inevitably fail.

You know, when Trayvon Martin was first shot I said that this could have been my son. Another way of saying that is Trayvon Martin could have been me 35 years ago. And when you think about why, in the African American community at least, there's a lot of pain around what happened here, I think it's important to recognize that the African American community is looking at this issue through a set of experiences and a history that doesn't go away.

If we can't meet with our friends, I don't know how we're going to lead the world in terms of dealing with critical issues like terrorism.