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

When we try to pick out anything by itself, we find it hitched to everything else in the universe.

We learned that economic growth and environmental protection can and should go hand in hand.

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.

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.

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.

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

It seems that every time mankind is given a lot of energy, we go out and wreck something with it.

The environment is everything that isn't me.