[When I ordered 30,000 more troops into Afghanistan] that was the first time in which I looked out at a crowd of West Point graduates and knew that some of those might not come back because of that decision.

What we can be scientifically certain of is that our continued use of fossil fuels is pushing us to a point of no return

we will encourage more Americans to study in Muslim communities

We are on alert 24/7. And everything that you report will be investigated. We do it in private. We do it covertly. This could be a problem, it could simply be your neighbor having a bad day. But better be safe than sorry.

I want to make sure that we, as a nation, stay unified because that's how we're going to achieve our missions.

As I got older, then my particular ambitions started cohering around creating a world in which people of different races or backgrounds or faiths can recognize each other's humanity, or creating a world in which every kid, regardless of their background, can strive and achieve and fulfill their potential.

Islam has a proud tradition of tolerance.