We can give our intelligence and law enforcement community the powers they need to track down and take out terrorists without undermining our commitment to the rule of law, or our basic rights and liberties.

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.

Number one, it is absolutely critical that we tone down the rhetoric when it comes to the immigration debate, because there has been an undertone that has been ugly. Oftentimes, it has been directed at the Hispanic community. We have seen hate crimes skyrocket in the wake of the immigration debate as it has been conducted in Washington, and that is unacceptable.

Civility also requires relearning how to disagree without being disagreeable. Surely you can question my policies without questioning my faith or, for that matter, my citizenship.

Here in the United States, hopefully, what we're building are not just pyramids, are not icons to one pharaoh. What we're building is a culture and a way of living together that we can look back on and say, [This] was good, was inclusive, was kind, was innovative, was able to fulfill the dreams of as many people as possible.

I've said very clearly, including in a State of the Union address, that I'm against 'don't ask, don't tell' and that we're going to end this policy.

Part of what's unique about climate change, though, is the nature of some of the opposition to action. It's pretty rare that you'll encounter somebody who says the problem you're trying to solve simply doesn't exist. When President Kennedy set us on a course for the moon, there were a number of people who made a serious case that it wouldn't be worth it; it was going to be too expensive, it was going to be too hard, it would take too long. But nobody ignored the science. I don't remember anybody saying that the moon wasn't there or that it was made of cheese.