Ultimately, if you think about all the youth that everybody has mentioned here in Africa, if everybody is raising living standards to the point where everybody has got a car and everybody has got air conditioning, and everybody has got a big house, well, the planet will boil over - unless we find new ways of producing energy.

I'm not saying I'm impervious to criticism.

...I believe deeply that we canot solve the challenges of your time unless we solve them together - unless we perfect our union by understanding that we may have differnt stories, but we hold common hopes; that we may not look the same and we may not have come from the same place, but we all want to move in the same direction - towards a better future for our children and our grandchildren. This belief comes from my unyielding faith in the decency and generosity of the American people.

But another thing I know is this — we can’t steer ourselves out of this crisis by heading in the same, disastrous direction. We can’t change direction with a new driver who wants to follow the same old map. And that’s what this election is all about.

Let's be grateful for what we have. Let's be mindful of those who have less. Let's appreciate those who hold a special place in our lives, and make sure they know it. And let's think about those who can't spend the holiday with their loved ones - especially the members of our military serving overseas.

The day after the attack, governor, I stood in the Rose Garden and I told the American people and the world that we are going to find out exactly what happened. That this was an act of terror and I also said that we're going to hunt down those who committed this crime.

Many of our ideas of democracy, so much of our literature and philosophy and science can be traced back to roots right here in Athens.