Birds are indicators of the environment. If they are in trouble, we know we'll soon be in trouble.

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

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.

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.

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

I can find God in nature, in animals, in birds and the environment.

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.

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