Bashar al-Assad and those who still stand by him are now responsible for the deaths of more than 20,000 in Syria.

All of us as citizens have to be consumers and judges.

I have been to Libya and walked the streets of Benghazi myself.

There is not an inherent contradiction between a Ukraine that has longstanding historic and cultural ties to Russia, and a modern Ukraine that wants to integrate more closely with Europe.

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.

It may not be what you would've chosen, but we all have a responsibility to be active citizens and shape our system and our future.

Focus on something that stirs your soul, it's hard to excel at anything that you don't love.