Spirituality and faith are at the core of who I am. I was born to deeply religious parents who were able to give me that rock solid foundation in the church and in my faith which really has served me so well.

Multilateral diplomacy is hard. It's slower, it's tougher, it's a bigger slog. I've learned that sometimes the things you'd most like to do something about, you really have difficulty unless the international community really mobilizes.

Most of the people who were responsible for 9/11 are now in custody or have been killed. But there are others, and they plot and they plan, and they hope to pull it off again. And while we have to be right 100 percent of the time, they only have to be right once. So there's no way to overreact to that.

Your friends and your family, if you're close to them, they won't let you get too far from who you were or from who you are. And so I love staying close to people who've always known me. That's probably the best leavening that you could possibly have.

We don't want the smoking gun to be a mushroom cloud.

Arnold Rampersad is a really good person. A really good person. As a matter of fact, he came to Stanford when I was Provost.

We have to recognize that the reason that the global order that we've enjoyed and almost take for granted over the last several years exists is that after World War II, the United States and its allies tried to build an antidote to what they had seen between World War I and World War II. There, they'd seen protectionism, beggar-thy-neighbor trading policies, so they said, we'll build an open international economy. And they did that.