We are still the America that does the hard things, that does the great things. We're the nation that always dared to dream. We're the nation that dared to take risks.

For as much as government can do and must do, it is ultimately the faith and determination of the American people upon which this nation relies. So let us mark this day with remebrance, of who we are and how far we have traveled.

Even limited military actions end up carrying with them great costs and unintended consequences.

The Holy Koran teaches that whoever kills an innocent is as - it is as if he has killed all mankind.

One of the things I think the next president has to do is to stop fanning people's fears. If we spend all our time feeding the American people fear and conflict and division, then they become fearful and conflicted and divided. And if we feed them hope and we feed them reason and tolerance, then they will become tolerant and reasonable and hopeful.

The opportunity will not remain open indefinitely.

Global warming is not just the greatest environmental challenge facing our planet - it is one of our greatest challenges of any kind.