Almost every successful person begins with two beliefs: the future can be better than the present, and I have the power to make it so.

For the Democrats, they're trying to avoid having the Sanders-Clinton debate over and over again. But, to some degree, they're sentenced to that debate. Clinton is much more embracing of the global economy and the international world order. Sanders and Warren are much less so. And they have got to figure out which side the party is on, if they're going to have a clear message. I think this is probably one you probably can't straddle.

People want a reality that tells them they're right all of the time.

The teachers union may not like Betsy DeVos, but she's clearly within the range of Republican policy-makers.

The idea that when you correct a fact, you erase that fact from people's memories is the reverse of the truth. When you correct a fact, what you do is you further lodge that fact into people's minds, and they remember the error.

What family you were born into matters so much more than it did before in a perverse way.

We have an international system. We all profit from it. Trade profits from it. Peace. We can travel around the world because of it. And part of that system is certain ideas, the certain ideas you can't invade other countries for no reason. You can't commit genocide. You can't - rogue regimes can't have nuclear weapons, and you can't gas your own people.