Hope is the bedrock of this nation. The belief that our destiny will not be written for us, but by us, by all those men and women who are not content to settle for the world as it is, who have the courage to remake the world as it should be.

And we remember the end of our combat mission and the emergence of a new dawn - the precision of our efforts against al Qaeda in Iraq, the professionalism of the training of Iraqi security forces, and the steady drawdown of our forces. In handing over responsibility to the Iraqis, you preserved the gains of the last four years and made this day possible.

Literacy is the most basic currency of the knowledge economy.

As the world's largest economy and second-largest carbon emitter, as a country with unsurpassed ability to drive innovation and scientific breakthroughs, as the country that people around the world continue to look to in times of crisis, we've got a vital role to play. We can't stand on the sidelines. We've got a unique responsibility.

One of the hardest things in politics is to convince people to do things now that will have a good effect 20 or 30 years from now because politicians tend to have a short-term view. They are more attentive to things that people care about today.

What I've seen in my own life is that when I get something important done it's because of a lot of other people - some who get credit, some who don't.

There's been a lot of talk about body cameras as a silver bullet or a solution. I think the task force concluded that there is a role for technology to play in building additional trust and accountability, but it's not a panacea, it has to be embedded in a broader change in culture and a legal framework that ensures that people's privacy is respected and that not only police officers but the community themselves feel comfortable with how technologies are being used.