Donald Trump is an unstable charlatan who is appealing to the worst instincts in people, and I believe ultimately the American people are going to reject that.

A stronger middle class is not the consequence of economic growth. A stronger middle class is the cause of economic growth.

To those who say climate change is not caused by human activity or that addressing it will harm the economy, let's encourage them to go to college, too, and to study physics and to study economics, but for the rest of us, let's get to work.

ISIS has brought down a Russian airliner. ISIS has now attacked a western democracy in - in France. And we do have a role in this. Not solely ours, but we must work collaboratively with other nations.

But we should not lose sight of how far we are coming and what a big hole we were left by George W. Bush.

The world is a very dangerous place. But the world is not too dangerous of a place for the United States of America provided we act according to our principles, provided we act intelligently.

A community united by the ideals of compassion and creativity has incredible power. Art of all kinds---music, literature, traditional arts, visual arts---can lift a community.