Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.

It's time to fundamentally change the way that we do business in Washington. To help build a new foundation for the 21st century, we need to reform our government so that it is more efficient, more transparent, and more creative. That will demand new thinking and a new sense of responsibility for every dollar that is spent.

The future rewards those who press on. I don't have time to feel sorry for myself. I don't have time to complain. I'm going to press on.

With patient and firm determination, I am going to press on for jobs. I'm going to press on for equality. I'm going to press on for the sake of our children. I'm going to press on for the sake of all those families who are struggling right now. I don't have time to feel sorry for myself. I don't have time to complain. I am going to press on.

Part of the reason that our politics seems so tough right now and facts and science and argument does not seem to be winning the day all the time is because we're hardwired not to always think clearly when we're scared. And the country's scared.

We've protected thousands of people in Libya we have not seen a single U.S. casualty there's no risks of additional escalation. This operation is limited in time and in scope.

We need to internalize this idea of excellence. Not many folks spend a lot of time trying to be excellent.

What I think is fair to say is that, coming out of the Republican camp, there have been efforts to suggest that perhaps I'm not who I say I am when it comes to my faith - something which I find deeply offensive, and that has been going on for a pretty long time.

People of Berlin - people of the world - this is our moment. This is our time.

We've persevered because of a belief we share with the Iraqi people - a belief that out of the ashes of war, a new beginning could be born in this cradle of civilization. Through this remarkable chapter in the history of the United States and Iraq, we have met our responsibility. Now, it's time to turn the page.