I'm constantly asking for alternative views on most things that come to me.

We did not go to war in Afghanistan or in Iraq to, quote, 'impose democracy.' We went to war in both places because we saw those regimes as a threat to the United States.

People change their habits. I know Americans who don't go to Paris because they think it is too dangerous.

The use of force to liberate people is very different from the use of force to suppress or control them, or even to defeat them.

I told my father I had to try political science for a year. He thought I was throwing my life away.

For the private sector to flourish, special privilege must give way to equal opportunity and equal risk for all.

Every math curriculum in the world is based on the idea of hand-calculating, and most of what you're teaching is how to calculate. And I think the resistance to this is very variable.