What I learned is that policymakers have to force consideration of actions that may not have occurred to them at the time.

Be who you are. If you spend all of your time worrying about how people view you, you will not be either faithful to yourself or effective in what you're trying to do.

I have great ambitions for when I get out of government. I will watch a broader range of stuff.

The U.S. cannot go it alone simply when it is convenient.

I don't worry about how folks want to characterize me.

For the United States to recommit itself to the obligation that we undertook in the Nuclear Non-Proliferation Treaty that many other states undertook, which was to work towards disarmament and the eventual elimination of nuclear weapons, is something that manifestly serves our national security interests.

We are patriots in my family, we are believers in America, we're believers in democracy.