It's in our interest to continue with the Paris Agreement and to deal with climate change as the real threat it actually is.

Progress is the product of human agency. Things get better because we make them better. Things go wrong when we get too comfortable, when we fail to take risks or seize opportunities.

There are plenty of meetings, receptions, dinners, and so if you are [at the U.N.] any length of time, and I was there for four and a half years, you formed pretty significant relationships with people from all over the world. And that's important to the work you do. If you're trying to rally the General Assembly to vote for something that matters to the United States, those personal relationships count.

There was a hateful video that was disseminated on the Internet. It had nothing to do with the United States government, and it's one that we find disgusting and reprehensible. It's been offensive to many, many people around the world. That sparked violence in various parts of the world, including violence directed against Western facilities including our embassies and consulates.

The notion that -- which some people are trying to suggest, that by asking for the identity of an American person, that is the same as leaking it, is completely false. There's no equivalence between so-called unmasking and leaking.

I've been very lucky to have had a supportive family, a great education, enormous opportunity and challenge.

Change doesn't happen with people sitting on their behinds, getting lazy.