Running helps me stay on an even keel and in an optimistic frame of mind.

The power of our example is more important than the strength of our military.

We should, all of us, be filled with gratitude and humility for our present progress and prosperity. We should be filled with awe and joy at what lies over the horizon. And we should be filled with absolute determination to make the most of it.

The problem with ideology is if you got an ideology, you already got your mind made up, you know all the answers, and that makes evidence irrelevant and argument a waste of time, so you tend to govern by assertion and attack. The problem with that is that discourages thinking and gives you bad results.

The first thing I had to start with was, you know, we don't have a war. We don't have a depression, we don't have a Cold War.

If you voluntarily quit in the face of adversity, you'll wonder about it for the rest of your life.

People like change in general, but not in particular.