A lot in the faith-based community, a lot of fundamentalist groups are - are now saying, you know, the Earth is the lord and the fullness there of, and we have an obligation to be good stewards of the planet.

I understand that being optimistic in this age is challenging, but I am optimistic nonetheless.

I don't have the illusion that there's any position or role in the world with as much potential for bringing about change as that of president of the United States.

All I'm doing, all I have done for 40 years, is spend time with the best scientific experts, gain their confidence, and take advantage of their patience in explaining things to me over and over again in progressively simpler language that I can understand, so that I can read it back to them and get their sign off, where they say, "Yep, that's it, Al. You've got it." When I understand it, I know I can explain it to other people. When the scientists' predictions end up being true, I see that as an opportunity to say to people, "Listen carefully to what they're saying now."

David Agus is one of America's great doctors and medical researchers, a man dedicated to improving the health of as many people as he can. Written in a style and format that will truly engage readers, The End of Illness presents a dramatic, new way of thinking about our own health-a way that could lead to greatly improving the quality of life for millions, starting right now.

John McCain is now openly endorsing the policies of the Bush-Cheney White House and promising to actually continue the same policies over again? Hey, I believe in recycling but that's ridiculous.

I have always been fascinated with those who try to look over the horizon and see things that are coming at us.