I'm not personally fearful, but I look out, and there are a number of things that concern me, and I'm hopeful that we can overcome them.

Most days are not overwhelmingly successful in your life. And what really marks whether you're going to be successful is how well you deal with the bad days, not how well you deal with the good ones.

The first step for a leader is to be right with yourself. Integrity is the basis of leadership.

I never found anybody I wanted to spend my life with. People say, "Didn't you want to get married?" Well, sure, but it's not abstract, there has to be someone you want to marry. I'm pretty traditional. Marriage would have to come first, before kids.

U.S. officials never expected that 'we were going to open garages and find' weapons of mass destruction.

If you're always in the company of people who agree with you, you're going to think of people who don't agree with you as venal or stupid. I constantly tell my students that if they're in the company of people who always say "amen" to what you say, find other company. And that is the source of illiberalism, when you are unable to listen to someone who thinks differently. That's when democracies are in trouble.

You cannot be on one hand dedicated to peace and on the other dedicated to violence. Those two things are irreconcilable.