Hate, emotionalism, and frustration are not policies.

What people have the capacity to choose, they have the ability to change.

And so I have studied, I have to tell you, revolutions and uprisings for a long time. They are all slightly different, but what they all look for is some kind of a mechanism to go from an authoritarian system to an open, democratic system.

No matter how hard we might wish, we will not be able to transform China's behavior overnight.

I don't actually believe in a clash of civilizations. I believe in a clash of the civilized and the noncivilized.

Foreign policy is now a huge field. It isn't just people who are studying political science. There are so many aspects to it in terms of understanding hard science for people who are studying climate change, or people who are interested in health policy or food security, or people who care about education.

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.