If I wrote a book, I had to be willing at least to talk about some of my struggles, whether in my personal life, health crises, or the deaths of my parents, because there can too easily be a perception of me that my life just went from A to Z uninterrupted, without any ups and downs, and that's not a fair representation.

I'm saying there is no way that I will do this, because it's really not me. I know my strengths, and governor Romney needs to find someone who wants to run with him. There are many people who will do it very, very well, and I'll support the ticket.

I wish that after the war against Saddam Hussein we had been more effective at rebuilding Iraq quickly. I think had we done it from the provinces, in, rather than from Baghdad, out, we might have been more successful.

We're in a new world. We're in a world in which the possibility of terrorism, married up with technology, could make us very, very sorry that we didn't act.

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.

There clearly are contacts between al Qaeda and Iraq that can be documented; there clearly is testimony that some of the contacts have been important contacts and that there's a relationship here

I'm a strong believer that you have to have an equal opportunity to fail and to try things that are hard. I always tell my students, "Don't just take things that are easy for you. If you're really good at math, don't take just math. Take classes that make you write. If you're a really great writer, but bad at math, take math and make yourself work your way through it."