For sure I would prefer Trump had not withdrawn from the Paris Agreement. But the fight against climate change is really done at the local level - whether it's cities, local governments or the private sector, corporate and individual. No matter what Trump says, nobody is going to go back and take the scrubber out or change back to polluting. The damage that Trump can do is if there are countries that are on the fence about whether they want to address the issue, this gives the naysayers, the doubters, those that don't want to do anything, a little more ammunition.

I don't know why you should be proud of something. It doesn't make you any better or worse. You are what you are.

I've always wondered if people who block each other from expressing their opinions do so because they have so little confidence in their own. To me, encountering an opposing point of view is a chance to gain a deeper understanding of the issues at stake and develop my own point of view. But the first thing you've got to do is you've got to let people speak and you've got to listen. And that's what the first amendment is all about. That's what really distinguishes this country from others.

I will say that walking down the street, getting on the subway, taking the elevator, if there's one or two people and they say, 'Great job, Mayor,' that is a real turn-on. I mean, anybody that wouldn't find that satisfying, rewarding, exciting, thrilling - I think they should see the doctor.

Five years have come, and five years have gone, and still we stand together as one. We come back to this place to remember the heartbreaking anniversary - and each person who died here - those known and unknown to us, whose absence is always with us.

And if I were the president, I'd go out there and I'd emphasize the things I have done, and I'd say, 'Some things haven't worked, and I'm sorry about that, but I keep trying.' And I'm - and I think the president is a very viable candidate, and you're going to have a real horse race here no matter who the Republican nominee is.

I thought Jeb Bush would have made a good president. He was on the board of my foundation. He's very conservative, much too conservative for me.