The incredible story of progress that is America has always been built by those who ask why, what if, and why not. Our schools must begin instilling that wonder in our children again so that their generation will unite around the next great project of our time, whether it be declaring America energy independent or launching the next great technological revolution.

And then you've got President Clinton who made the case as only he can. After he spoke, somebody sent out a tweet- they said, you should appoint him secretary of explaining stuff. I like that- secretary of explaining stuff. Although, I have to admit, it didn't really say stuff. I cleaned that up a little bit.

The world thanks you for sharing Nelson Mandela with us.

I mean, if you think about - if you think about it, UPS and FedEx are doing just fine, right? No, they are. It's the Post Office that's always having problems.

Too many Americans who struggle with mental health illnesses are suffering in silence rather than seeking help, and we need to see to it that men and women who would never hesitate to go see a doctor if they had a broken arm or came down with the flu, that they have that same attitude when it comes to their mental health.

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.

Presidential elections always turn on personalities, they turn on how campaigns are run, they turn on natural desires for change.