I believe that marriage has served society well, and I believe it is important to affirm that, that marriage between a man and a woman is the ideal. And the job of the President is to drive policy toward the ideal.

Will you be a spectator or a citizen? To make a difference in this world, you must be involved.

We ought to be using nuclear power. It's a renewable source of energy.

America has never been united by blood or birth or soil. We are bound by ideals that move us beyond our backgrounds, lift us above our interests and teach us what it means to be citizens.

The Oval Office is a place where there's been, obviously, a lot of amazing experiences over a seven-and-a-half year period. My presidency is one where I've had to make some very tough decisions. I guess some presidencies are kind of - were real smooth, there were no real big issues. Well, that's not the way mine is.

Let me put it to you this way, I am not a revengeful person.

My fellow Americans: Major combat operations in Iraq have ended. In the battle of Iraq, the United States and our allies have prevailed.