If Reagan had intelligence information that showed that the upheaval in Egypt is actually Democratic in spirit, then he would have, I believe, turned his back on Mubarak, even though there's a long friendship between the United States and Egypt.

Stubbornness is a positive quality of presidential leadership - if you're right about what you're stubborn about.

For years, I longed to hear Armstrong describe what it was like to contemplate Earth from 238,900 miles away. Former Space Center director George Abbey once told me that many NASA astronauts felt that looking at Earth was akin to a religious experience.

It's Nixon who created the Environmental Protection Agency. Clean Air and Water Acts. Endangered Species Act. Promoted affirmative action. One could go on and on with Nixon as a New Deal liberal on domestic policy and a hawk, but one with great geo-political skills.

Stubbornness is a positive quality of presidential leadership - if you're right about what you're stubborn about.

I think there's a green side to John Kerry, if you like, that he's an environmental activist. His record on the environment is as best as you have on a pro-environment record of anybody in the U.S. Senate.

I feel like I'm always learning from people.