We don't have to sacrifice a strong economy for a healthy environment.

Never doubt that a small group of thoughtful, committed citizens can change the world indeed, it's the only thing that ever has.

If we do not permit the earth to produce beauty and joy, it will in the end not produce food, either.

Much of the debate over global warming is predicated on fear, rather than science.

Our world faces a true planetary emergency. I know the phrase sounds shrill, and I know it's a challenge to the moral imagination.

People blame their environment. There is only one person to blame - and only one - themselves.

The only way forward, if we are going to improve the quality of the environment, is to get everybody involved.

I did not become a vegetarian for my health, I did it for the health of the chickens.

Keep close to Nature's heart... and break clear away, once in awhile, and climb a mountain or spend a week in the woods. Wash your spirit clean.

We won't have a society if we destroy the environment.