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

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

Unless we keep this planet healthy, everything else is for naught.

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

Local innovation and initiative can help us better understand how to protect our environment.

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

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

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

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

Take a course in good water and air and in the eternal youth of Nature you may renew your own. Go quietly, alone no harm will befall you.