When I came into office, the world was divided. Iran was resurgent. Iran is at its weakest point, economically, strategically, militarily, then since - then in many years. And we are going to continue to keep the pressure on to make sure that they do not get a nuclear weapon. That's in America's national interest and that will be the case so long as I'm president.

Globalization is a fact, because of technology, because of an integrated global supply chain, because of changes in transportation. And we're not going to be able to build a wall around that.

Now, in practice, in daily social interactions, etc., there may be all kinds of biases and prejudices that are unspoken, that people aren't aware of, that affect who's hired, and who gets loans, and how kids are treated in school. But it's a powerful thing if you have on your side an idea that the overwhelming majority of people believe in because that's how you can build a consensus that's lasting.

I am somebody who usually writes out the rough draft in longhand. Then I type it into the computer, and that is where I do my editing. I find that if I write it on the computer, I go too quick. So I like getting that first draft out and then typing it in; you are less self-conscious about it.

The shift to a cleaner energy economy wont happen overnight, and it will require tough choices along the way. But the debate is settled. Climate change is a fact.

When I turn over the keys to the president-elect, America will be much stronger than it was when I came into office.

The changes in thinking about same-sex marriage have come slowly at first and then in rapid course. If such change is possible in this area, is it also possible in the vexed and sordid realm of race relations?