Leaders are made by the situations they are involved in. I think that some rise to the occasion and some do not.

You [young people] all are just much more internationally-minded and traveled and knowledgeable in languages than any other previous generation. So many of you are already doing a lot of international relations, I think. I so believe in student networks, and people that either study abroad or come to the United States to study, and the relationships that you all develop. You learn a lot from each other, but you all will see each other again in jobs along the way. And I think that makes a big difference. I so believe in what students can do.

In terms intellectually, [what] shaped my life was the whole Munich thing [the Munich Agreement] that I knew about all my life, in terms of how large powers make decisions that affect small countries, and the unintended consequences of that. The other part is I knew about the Holocaust. l just didn't know that it applied to my family. But that did affect the way I thought about what I was seeing as ethnic cleansing in the Balkans; there's no question about that.

I think that we all know what evil is. We have a sense of what's evil, and certainly killing innocent people is evil. We're less sure about what is good. There's sort of good, good enough, could be better - but absolute good is a little harder to define.

It's important that we invest in America - literally. The terrorists wanted to destroy our economy, and we can't let our system fall apart. We also have to invest in one another.

Every new president inherits headaches, but President Obama has inherited an entire emergency room.

Our predecessors understood that the ties that bind America are far stronger than disagreements over any particular policy and far more durable and profound than any party affiliation.