We do have to balance this issue of privacy and security. Those who pretend that there's no balance that has to be struck and think we can take a 100-percent absolutist approach to protecting privacy don't recognize that governments are going to be under an enormous burden to prevent the kinds of terrorist acts that not only harm individuals, but also can distort our society and our politics in very dangerous ways.

I have much more confidence in my ability, or any president or any leader's ability, to mobilize the American people around a multiyear, multibillion-dollar investment to help every child in poverty in this country than I am in being able to mobilize the country around providing a benefit specific to African Americans as a consequence of slavery and Jim Crow.

I have great respect for both President Obama and the office that he holds

I think it is possible for the world to see a Palestinian state - I'm not going to put a time frame on it - that is contiguous, that allows freedom of movement for its people, that allows for trade with other countries, that allows the creation of businesses and commerce so that people have a better life.

You Can't Rest on Your Laurels. Your Own Body of Work Is Yet to Come.

For now, whether you are young or whether you're young at heart, I do have one final ask of you as your president, the same thing I asked when you took a chance on me eight years ago. I am asking you to believe not in my ability to bring about change, but in yours.

Simple exchanges can break down walls between us, for when people come together and speak to one another and share a common experience, then their common humanity is revealed. We are reminded that we're joined together by our pursuit of a life that's productive and purposeful, and when that happens mistrust begins to fade and our smaller differences no longer overshadow the things that we share. And that's where progress begins.