Part of American leadership is making sure that we're doing nation building here at home. That will help us maintain the kind of American leadership that we need.

Our job as Americans is to restore that basic bargain that says, if you work hard, if you're willing to meet your responsibilities, you can get ahead. You can get ahead. Doesn't matter what you look like, doesn't matter where you come from. Our middle class, when it's growing, when it's thriving, when there are ladders of opportunity for people to do a little bit better each year and then make sure that their kids are doing even better than them, that's the American dream. That's what we got to fight for. That has to be the north star that guides everything we do.

I did not suggest that Iran is a democracy; just the opposite. I talked about it being a repressive theocracy. What I think is indisputable is that even within this repressive regime, the political leaders there - including the Supreme Leader - are sensitive to the concerns of the population within bounds.

The only time I get frustrated with activist criticism is if I have recognized them, and invited them to work with me to figure out how we solve this problem that they're concerned about, and either they don't engage out of the sense of purity - "I'm not going to shake his hand" - or you're not sufficiently prepared so you don't even know what to ask for, or you're not being strategic as an activist and trying to figure out how the process has to work in order for you to get what you want.

What we saw was that the Ferguson Police Department in conjunction with the municipality saw traffic stops, arrests, tickets as a revenue generator, as opposed to serving the community, and that it systematically was biased against African-Americans in that city who were stopped, harassed, mistreated, abused, called names, fined.

Libraries have a special role to play in our knowledge economy. Your institutions have been and should be a place where parents and children come to read together and learn together. We should take our kids there more.

We remain a young nation, but in the words of Scripture, the time has come to set aside childish things. The time has come to reaffirm our enduring spirit; to choose our better history; to carry forward that precious gift, that noble idea, passed on from generation to generation: the God-given promise that all are equal, all are free, and all deserve a chance to pursue their full measure of happiness.