Obviously [my daughters] - and Michelle - have made a lot of sacrifices on behalf of my cockamamie ideas, the running for office and things.

That's what building a body of work is all about. It's about the daily labor, the many individual acts, the choices large and small that add up over time, over a lifetime to a lasting legacy. It's about not being satisfied with the latest achievement, the latest gold star, because the one thing I know about a body of work is that it's never finished. It's cumulative. It deepens and expands with each day you give your best. You may have setbacks and you may have failures, but you're not done.

I don't think I underestimated [Vladimir Putin], but I think that I underestimated the degree to which, in this new information age, it is possible for misinformation for cyber hacking and so forth to have an impact on our open societies, our open systems, to insinuate themselves into our democratic practices in ways that I think are accelerating.

I believe in term limits for presidents because I think that there is no doubt I'm a better president now than I was when I start.

The fact that my 15 minutes of fame has extended a little longer than 15 minutes is somewhat surprising to me, and a matter of bewilderment for my wife.

We proved that we are still a people capable of doing big things and tackling our biggest challenges.

This is our moment...while we breathe, we hope. And where we are met with cynicism and doubts and those who tell us that we can't, we will respond with that timeless creed that sums up the spirit of a people: Yes, we can.