There are legitimate concerns and anxieties that the forces of globalisation are leaving too many people behind - and we have to take those concerns seriously and address them. But the answer isn't to turn inward and embrace protectionism. We can't just walk away from trade.

There wasn't a time where I felt fearful that I couldn't make the best decisions possible.

Congress has become so dysfunctional that more and more of a burden is placed on the agencies to fill in the gaps. And the gaps get bigger and bigger because they're not constantly refreshed and tweaked.

We have to recognize we've got some big problems on race, just like we got still big problems on crime, just like we got big problems on just about everything. But we also have to make sure that we've - draw confidence from the progress that we have made, 'cause otherwise, you get into this cycle of cynicism.

That bright blue ball rising over the moon's surface, containing everything we hold dear - the laughter of children, a quiet sunset, all the hopes and dreams of posterity - that's what's at stake. That's what we're fighting for. And if we remember that, I'm absolutely sure we'll succeed.

[Fall of the Berlin Wall] is a reminder that the commitment of the United States, to Europe is enduring and it's rooted in the values we share; our commitment to democracy, our commitment to rule of law, our commitment to the dignity of all people in our own countries and around the world.

I believe moderates will need to be driven out in order to usher in the progressive era.