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

By polluting clear water with slime you will never find good drinking water.

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

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.

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

Not all is doom and gloom. We are beginning to understand the natural world and are gaining a reverence for life - all life.

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

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

No one should be able to enter a wilderness by mechanical means.

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