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

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

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

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

I have a private plane. But I fly commercial when I go to environmental conferences.

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

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

When we realize we can make a buck cleaning up the environment, it will be done!

Never doubt that a small group of thoughtful, committed citizens can change the world indeed, it's the only thing that ever has.

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