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.
John Muir

They claim this mother of ours, the Earth, for their own use, and fence their neighbors away from her, and deface her with their buildings and their refuse.
Sitting Bull

It is horrifying that we have to fight our own government to save the environment.
Ansel Adams

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

I think it makes people in the Pentagon kind of nervous to know that chemical agents and environmental factors could cause so much damage in terms of what may happen in the future.
Bernard Sanders

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