Of course, there is no question that Libya - and the world - will be better off with Gaddafi out of power. I, along with many other world leaders, have embraced that goal, and will actively pursue it through non-military means. But broadening our military mission to include regime change would be a mistake.

I'm suspicious of too much certainty in the pursuit of understanding just because I think people are limited in their understanding.

I would have to investigate more of Bill's dancing abilities, you know, and some of this other stuff before I accurately judge whether he was in fact a brother.

That bright blue ball rising over the moon's surface, containing everything we hold dear - the laughter of children, a quiet sunset, all the hopes and dreams of posterity - that's what's at stake. That's what we're fighting for. And if we remember that, I'm absolutely sure we'll succeed.

The United States often finds itself in a situation where if it goes in militarily then it is criticized for going in militarily, and if it doesn't go in militarily, then people say, why aren't you doing something militarily?

The Iranians may simply try to run out the clock.

I do think that I am generally optimistic.