My God, Donald Trump is unfit! He's ill-tempered, he's unsuited, he is not qualified, he's unsuited to be president.

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.

We think about the enormous costs of homelessness, or the enormous cost of HIV/AIDS, over the long term, as people visit emergency rooms, etc. The more we are investing in that ounce of prevention the better off we're going to be.

What I've seen in my own life is that when I get something important done it's because of a lot of other people - some who get credit, some who don't.

Campaigning is different from governing.

I refuse to give in to the notion that the American people can't handle complicated information.

The fear among economists across the political spectrum that was - was that we were rapidly plummeting towards a second Great Depression. So, in the weeks and months that followed, we undertook a series of difficult steps to prevent that outcome. And we were forced to take those steps largely without the help of an opposition party, which, unfortunately, after having presided over the decision-making that had led to the crisis, decided to hand it over to others to solve.