This is not some distant problem of the future. This is a problem that is affecting Americans right now. Whether it means increased flooding, greater vulnerability to drought, more severe wildfires - all these things are having an impact on Americans as we speak.

If we want America to stay on the cutting edge, we need young Americans to master the tools and technology that will change the way we do just about everything.

Empathy is a quality of character that can change the world.

Any time bombs are used to target civilians it is an act of terror.

None of this is fair to you. And should it continue, it will make it more difficult to keep attracting the kind of driven, patriotic, idealist Americans to public service that our citizens deserved and that our system of self-government demands.

The 20th Century was a bloodbath, and for all the frustrations and failures of the project to unify Europe, the last five decades have been periods of unprecedented peace, growth, and prosperity in Europe.

And so our goal on health care is, if we can get, instead of health care costs going up 6 percent a year, it's going up at the level of inflation, maybe just slightly above inflation, we've made huge progress. And by the way, that is the single most important thing we could do in terms of reducing our deficit. That's why we did it.