Iran won't pursue nuclear weapons because 'it's contrary to their faith.'

I'm inspired by my own children, how full they make my heart. They make me want to work to make the world a little bit better. And they make me want to be a better man.

One of my strengths is I have a pretty even temperament. I don't get too high when it's high and I don't get too low when it's low. And what I found during the course of the presidency, and I suppose this is true in life, is that investments and work that you make back here sometimes take a little longer than the 24-hour news cycle to bear fruit.

There are times where I've made mistakes or our administration hasn't always aligned ourselves with the values we need to align ourselves with. It's a work of constant improvement.

Trump is not somebody who`s fit to be president in any circumstances. I would feel deeply frustrated, not because anything he said about me, but because I would fear for the future of our country.

This kind of gaping inequality gives lie to the promise that’s at the very heart of America: that this is a place where you can make it if you try. We tell people - we tell our kids - that in this country, even if you’re born with nothing, work hard and you can get into the middle class. We tell them that your children will have a chance to do even better than you do. That’s why immigrants from around the world historically have flocked to our shores.

I found during the course of my political career on the national scene there's a point where the vanity burns away and you've had your fill of your name in the papers, or big adoring crowds, or the exercise of power. And for me that happened fairly quickly. And then you are really focused on: What am I going to get done with this strange privilege that's been granted to me? How do I make myself worthy of it?