The best education I received was working with people in the community on a grassroots basis. Because what it taught me was that ordinary people, when they are working together can do extraordinary things.

Over the last few years a lot of people have become aware of the inequities in the criminal justice system, right now, with our overall crime rate and incarceration rate both falling, we're at a moment when some good people in both parties, Republicans and Democrats and folks all across the country, are coming up with ideas to make the system work smarter and better.

I think it's fair to say that my temperament is steady - and on the buoyant side.

The ideas of ancient Greece helped inspire America's founding fathers as they reached for democracy. Our revolutionary ideas helped inspire Greeks as they sought their own freedom.

I will sign a universal health-care bill into law by the end of my first term as president that will cover every American and cut the cost of a typical family’s premium by up to $2,500 a year.

We have to be successful at the cutting-edge industries of the future like Twitter. But we also have always been a country that makes stuff.

I will promise you this, that if we have not gotten our troops out by the time I am president, it is the first thing I will do. I will get our troops home, we will bring an end to this war. You can take that to the bank.