How we think about terrorism has to be defined and specific enough that it doesn't lead us to think that any horrible actions that take place around the world that are motivated in part by an extremist Islamic ideology is a direct threat to us or something that we have to wade into.

You could analyze me and say that my father leaving and being absent was a motivator for early ambition, trying to prove myself to this apparition who had vanished. You could argue that me being a mixed kid in a place where there weren't a lot of black kids around might have spurred on my ambitions. You could go through a whole litany of things that sparked me wanting to do something important.

I actually believe that we need missile defense, because of Iran and North Korea and the potential for them to obtain or to launch nuclear weapons, but I also believe that, when we are only spending a few hundred million dollars on nuclear proliferation, then we're making a mistake.

You're not going to be able to make good decisions without building some relationship of trust between yourself and community.

That applies, by the way, even to some of the folks who are now [Donald] Trump supporters. They're responding to a fictional character named Barack Obama who they see on Fox News or who they hear about through Rush Limbaugh.

We know the battle ahead will be long. But always remember that, no matter what obstacles stand in our way, nothing can stand in the way of the power of millions of voices calling for change.

The United States, we know what happens when we start dividing ourselves along lines of race or religion or ethnicity.