Like democracy itself, jazz has structure, but within it you can say almost anything.

One of the things I love about negotiations is that you have to be able to play it like an orchestra, different instruments for different circumstances. There's sweetness, and encouragement, and cajoling. There's pressure, there's drama, there's ultimatums.

Peace, prosperity, and democracy cannot endure if imposed from the outside. We should cease to make false distinctions between peacekeeping and prevention; they are in fact inextricably linked.

I think most Americans understand that we went through a period in which American leadership was judged quite critically internationally.

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.

I spend every day up at the United Nations where I have to interact with 192 other countries. I know how well the United States is viewed.

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