I'm often asked why I left politics and went to Halliburton and I explain that I reached the point where I was mean-spirited, short-tempered and intolerant of those who disagreed with me and they said 'Hell, you'd make a great CEO', so I went to Texas and joined the private sector.

How could any responsible leader have ignored the Iraqi threat? If we had not acted, Saddam Hussein and his sons would still be in power.

We've gotten a long way on missile defense. We know how to do it. We know how to take down incoming warheads, but we need to do a lot more work in order to be - to deploy a system that'll defend the United States against those kinds of limited strikes that might be possible by a nuclear armed North Korea or Iran.

There's every reason to believe there will be further attacks attempted against the United States. For us to spend so much time patting ourselves on the back because we got bin Laden that we miss the next attack would be a terrible tragedy.

There comes a time when deceit and defiance must be seen for what they are. At that point, a gathering danger must be directly confronted. At that point, we must show that beyond our resolutions is actual resolve.

I had a reputation of being somewhat moderate, partly, I think, because I wasn't a 'bomb thrower' like some of my conservative colleagues, and partly because I got along with people all across the political spectrum.

I reached a point towards the end on the old heart where I had trouble getting out of a chair. All I wanted to do was get out of bed in the morning and walk to my office and sit back down in the chair. Now I throw 50 pound bags of horse feed in the back of my pickup truck and I don't even think about it. I'm back doing those things.