To young people: you have to stay encouraged.

Having the United Kingdom in the European Union gives us much greater confidence about the strength of the transatlantic union and is part of the cornerstone of institutions built after World War II that has made the world safer and more prosperous.

It requires enormous energy for us to cut the African American uninsured rate by a third. A lot of scars.

And I believe the nation that invented the automobile cannot walk away from it.

We should never hesitate to use military force, and I will not, as president, in order to keep the American people safe. But we have to use our military wisely. And we did not use our military wisely in Iraq.

We learn from our mistakes, we do some reflection, we lick our wounds, we brush ourselves off - then we go forward, with the presumption of good faith in our fellow citizens.

I actually believe that we need missile defense, because of Iran and North Korea and the potential for them to obtain or to launch nuclear weapons, but I also believe that, when we are only spending a few hundred million dollars on nuclear proliferation, then we're making a mistake.