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

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

Harmony with land is like harmony with a friend you cannot cherish his right hand and chop off his left.

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

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

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

Harmony with land is like harmony with a friend you cannot cherish his right hand and chop off his left.

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

You may be able to fool the voters, but not the atmosphere.

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