Sometimes it may seem as if progress is stalled but what history of post-war Germany shows is that strength and determination and focus and adherence to the values that we care about will result in a better future for our children and our grandchildren.

Let's say I'm on the policy wonk end of the spectrum. As much as I can dive into a briefing book and really work to master various subjects that come before my desk, I'm still not an expert on a huge amount of the stuff that we work on.

We have a rare chance to pursue a new path, a different, better future that delivers progress for both our peoples and the wider world. That's the opportunity before the Iranian people. We need to take advantage of that.

I have 90 percent or 95 percent support in the African American community and it's not sort of "Well, he's black, so it's okay. We're not going to say anything even though we're seething." And I hang out with a lot of middle-aged black women, and they're not casual in their support of me. There's a lot of love forthcoming. Partly because they understand the constraints of this society. They know that this is hard.

If you think you got a better idea in terms of how to approach this that's not gonna result in more pollution, and more asthma, and more illness then put your ideas out there. But don't just oppose things because, "This was Obama's agenda."

Ask Osama bin Laden and the 22-out-of-30 top al-Qaida leaders who've been taken off the field whether I engage in appeasement. Or whoever is left out there, ask them about that.

Here's the truth: the Soviet Union had thousands of nuclear weapons, and Iran doesn't have a single one. But when the world was on the brink of nuclear holocaust, Kennedy talked to Khrushchev and he got those missiles out of Cuba. Why shouldn't we have the same courage and the confidence to talk to our enemies? That's what strong countries do, that's what strong presidents do, that's what I'll do when I'm president of the United States of America.