I've said repeatedly that where we see terrorist organizations like al-Qaeda or ISIL, they have perverted and distorted and tried to claim the mantle of Islam for an excuse, for basically barbarism and death. These are people who kill children, kill Muslims, take sex slaves - there's no religious rationale that would justify in any way any of the things that they do.

So we don't need more top-down economics. We've tried that theory. We've seen what happens. We can't afford to go back to it.

Progress does not compel us to settle centuries-long debates about the role of government for all time, but it does require us to act in our time.

In your generation, everybody is constantly bombarded with all kinds of different input from different cultures, and that's a strength, that's a positive thing. That's why I remain confident about America's ability to compete in the world, precisely because we've got a little bit of everybody in this country.

Here`s a guy who says he`s a great businessman. But it seems like a lot of Trump's business is built around stiffing small businesses and workers out of what he owes them, work they`ve done. He thinks that`s cute or smart or funny to basically not pay somebody who`s done work for him and say go ahead and sue me because I`ve got more money than you and you can`t do anything about it.

Lincoln basically pulled in all the people who had been running against him into his Cabinet because, whatever personal feelings there were, the issue was 'How can we get this country through this time of crisis?' 

Keep exploring. Keep dreaming. Keep asking why. Don’t settle for what you already know. Never stop believing in the power of your ideas, your imagination, your hard work to change the world.