We're the only species that have crapped up the planet and the only species that can clean it up.

If you don't generate tension in the film to begin with... you can't really make a purse out of a sow's ear, you know.

It's fun to be a little bit different in the world, to make a few new trails of your own.

Years ago on the set of Gunsmoke I read the book The Holy Science. Since then I have not eaten meat.

The premise is simple: One economy and one environment, and they're interdependent.

The Age of Oil has really exhausted its usefulness, and it has actually become a danger to our lives and our ability to survive on the planet.

I feel responsible; I feel I've got to do something that will leave the kids a place where they can live healthy, safe, productive, creative and prosperous lives.