Keep exploring. Keep dreaming. Keep asking why. Don’t settle for what you already know. Never stop believing in the power of your ideas, your imagination, your hard work to change the world.

A sportswriter once referred to him as our future president. With a name like Kevin, I don't know whether that's possible.

Faced with the potential of mass atrocities and a call for help from the Libyan people, the United States and our friends and allies stopped Gadhafi's forces in their tracks. A coalition that included the United States, NATO and Arab nations persevered to protect Libyan civilians. So this is a momentous day in the history of Libya. The dark shadow of tyranny has been lifted, and with this enormous promise the Libyan people now have a great responsibility: to build an inclusive and tolerant and democratic Libya that stands as the ultimate rebuke to Gadhafi's dictatorship.

We are a people of improbable hope.

You have people around the country who are benefitting from the steps that we've taken [with Obamacare] and as long as they continue to get helped, then at least I'll know in my own mind that the work we did here had a lasting impact.

People don't expect government to solve all their problems. But they sense, deep in their bones, that with just a slight change in priorities, we can make sure that every child in America has a decent shot at life, and that the doors of opportunity remain open to all. They know we can do better.

To young people: you have to stay encouraged.