I find it odd that suddenly people believe the United States is this Islamophobic country. I think this is the most tolerant country in the world.

Search for role models you can look up to and people who take an interest in your career. But here's an important warning: you don't have to have mentors who look like you. Had I been waiting for a black, female Soviet specialist mentor, I would still be waiting. Most of my mentors have been old white men, because they were the ones who dominated my field.

We're all products of our environment, and I suspect that strength of will - the feeling, "I'm going to be able to do whatever you put in front of me" - is honed in an environment where not everything is easy. Ironically, growing up in that environment, you don't have a sense of aggrievement or entitlement. You just have a sense of overcoming.

To say that people around the world deserve the same, the same life that we have in the United States, the same freedoms that we have, that seems to me, humble. I think it's humble to say that the United States, which has been given so much, should give back.

You know, I look at Vladimir Putin as somebody who is an eye-for-an-eye kind of person. We questioned the legitimacy of his election in 2012, Secretary Clinton did - rightly, by the way. It did have - it was quite fraudulent.And so I think he's saying now, I'm going to show you that I can do the same thing.

Everywhere that I go in the world, people desperately look to American leadership in all of their world's most difficult problems. You can look at any region of the world and the United States is still the country to which those regions look for leadership.

I was born in segregated Birmingham, Alabama. I didn't have a white classmate till we moved to Denver.