There are many who would much prefer that the word 'climate' never be mentioned and that the issue be eliminated from our national conversation.

Having cameras follow you is something that requires a little personal adjustment, but you actually do begin to forget they're there. It's impossible to maintain that awareness all the time, and when you're going through an emotional or absorbing experience, you really don't have any spare attention to think, "Got to remember that the camera is rolling."

Even if we give first priority to the destruction of terrorist networks, and even if we succeed, there are still governments that could bring us great harm. And there is a clear case that one of these governments in particular represents a virulent threat in a class by itself: Iraq. As far as I am concerned, a final reckoning with that government should be on the table.

I decided to pick the diet that I thought would maximize my chances of long-term survival.

We ought to approach this challenge [of global warming] with a sense of profound joy and gratitude: that we are the generation about which, a thousand years from now, philharmonic orchestras and poets and singers will celebrate by saying, they were the ones that found it within themselves to solve this crisis and lay the basis for a bright and optimistic human future.

I remain optimistic that ultimately free speech and a free press where individuals have access to the dialogue will have a self-correcting quality.

Our insatiable drive to rummage deep beneath the surface of the earth is a willful expansion of our dysfunctional civilization into Nature.