In a free society, there comes a time when the truth - however hard it may be to hear, however impolitic it may seem to say - must be told.

I had a detailed plan for my life, but it turned out life had a completely different plan for me. And I feel joy that I have work that feels like it justifies pouring everything I have into it. I never have fallen prey to the illusion that there's any job with as much ability to influence the future as that of President of the United States, but I do feel grateful that I found other ways to do work that serves the public interest.

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

I drive a hybrid. Tipper and I got a Lexus hybrid. And we have a couple of Priuses in the family with our children. And I encourage people to make environmentally conscious choices because we all have to solve this climate crisis.

Unless we stop dumping 70 million tons of global warming pollution into the atmosphere every 24 hours, which we are doing right now ... the continued acceleration of this pollution would destroy the future of human civilization.

Consider what kind of car you get. Buy cars and other products that have the least impact environmentally.

Junkies find veins in their toes when the veins in their arms collapse. Developing tars sands is the equivalent.