Everything we've done has been designed to make sure that we address that number one priority. That's what the sanctions regime was all about. That's how we were able to mobilize the international community, including some folks that we are not particularly close to, to abide by these sanctions. That's how these crippling sanctions came about, was because we [USA] were able to gain global consensus that Iran having a nuclear weapon would be a problem for everybody.

But what I would say to my successor is that it is important not just to shoot but to aim. And it is important, in this seat, to make sure that you're making your best judgments based on data, intelligence, the information that's coming from your commanders and folks on the ground and you're not being swayed by politics.

That is the true genius of America, a faith in the simple dreams of its people, the insistence on small miracles. That we can say what we think, write what we think, without hearing a sudden knock on the door. That we can have an idea and start our own business without paying a bribe or hearing a sudden knock on the door. That we can participate in the political process without fear of retribution, and that our votes will be counted.

For half of the world's population, roughly three billion people around the world living on less than two dollars a day, an election is at best a means, not an end; a starting point, not deliverance. These people are looking less for an "electocracy" than for the basic elements that for most of us define a decent life--food, shelter, electricity, basic health care, education for their children, and the ability to make their way through life without having to endure corruption, violence, or arbitrary power.

Whatever we think of the past, we must not be prisoners to it.

In many ways [those middle-aged black ladies] my touchstone, because they are what I meant when I talked about the audacity of hope.

I think it's fair to say that my temperament is steady - and on the buoyant side.