There is desperate education inequality in America, and I think every kid deserves a good teacher and a good school regardless of the ZIP code that he or she lives in.

The importance of building relationships among colleagues, of trying to create coalitions behind the issues that you are championing, was not something I ever had much insight into until I was elected and started serving in the Senate.

That is the number-one threat we face in the world. And it becomes particularly threatening if terrorists ever get their hands on any nuclear material. So a man who can be provoked by a tweet should not have his fingers anywhere near the nuclear codes, as far as I think anyone with any sense about this should be concerned.

I think what President [Barack] Obama has done is to chart a steady course. When I was there, the first four years we had a lot of cleanup to do. We inherited a lot of bad feelings from the [George W.] Bush administration, and much of what I spent my time doing was traveling around the world reassuring friends and allies.

Getting countries working together was my job every day as your secretary of state.

What's great about America is anybody can run for president. That is literally true.

We've got unmatched talent, innovation, entrepreneurial spirit, so when we work together, we can all benefit.