Learning to stand in somebody else's shoes, to see through their eyes, that's how peace begins. And it's up to you to make that happen. Empathy is a quality of character that can change the world.

I think my most important advice is to understand what are the foundations of a healthy democracy and how we have to engage in citizenship continuously, not just when something upsets us; not just when there's an election or when an issue pops up for a few weeks. It's hard work.

You wouldn't know that if you talked to Human Rights Watch or Amnesty International or some of the international activist organizations. Certainly you wouldn't know that if you were talking to some of the writers who criticize our drone policy. But I've actually told my staff it's probably good that they stay critical of this policy, even though I think right now we're doing the best that we can in a dangerous world with terrorists who would gladly blow up a school bus full of American kids if they could.

Democracy demands that the religiously motivated translate their concerns into universal, rather than religion-specific, values.

We are engaging in the diplomatic efforts that are required within Iraq among the Shia, the Sunni and the Kurd, among friends, like Egypt, and Turkey and Saudi Arabia, but also enemies like Iran and Syria. They have to have buy-in into that process.

The people there, the community, the lessons that I learned -- they're all based right in this few square miles where we'll now be able to give something back and bring the world back home after this incredible journey.

The key is whether or not we have got priorities that are working for you, as opposed to those who have been dictating the policy in Washington lately. And that's mostly lobbyists and special interests. We have got to put an end to that.