The world only makes sense to me given my life and my background if, in fact, we're not just an assortment of tribes that can never understand each other, but that we're, rather, one common humanity that can meet and learn and love each other.

The map isn't always the territory, and you have to kind of walk through it to get a feel for it.

There are always things that I think I wish I could have done better.

Donald Trump is temperamentally unfit.

The other reason might be that you want to talk to voters when you've got seven primaries in seven days. Understand what's happened in this race - where we campaign actively in a state, and voters have the chance to see me directly, they check under the hood, and they kick the tires, when we don't have as much time.

There are dangers that globalization increases inequality. There are dangers that because capital is mobile and workers are not, if we are not providing them sufficient protection, that they can be left behind in this process. And that's what we have to focus on.

If some of these [Republican] folks were around when Columbus set sail, they must have been founding members of the 'flat earth society.' They would not believe that the world was round.