One's a dog-eat-dog world, and the other one's just the opposite.

We're paying more for the privilege of getting sick and dying early. Once again, it makes no sense. And once again, no one in Washington is talking about how to fix it.

Well, we have to provide the world's best schools. We certainly don't have them, but that's our objective.

Most people won't have opportunity to do full-time service, but those lucky enough to have monetary wealth or some spare time really can make an enormous difference. As someone who's now in the public sector, and is seeing up-close-and-personal the real impact of what we do and what we give, I can tell you: every dollar and every volunteer help, in more ways than you can count.

You bet I did and I enjoyed it.

I'm worried about the world because there's chaos in the Middle East, and I think the Iranian deal [to lift sanctions] is going to continue the Shia-Sunni battles, the Persian-Arab battles.

Progress is not inevitable. It's up to us to create it.