Earth provides enough to satisfy every man's needs, but not every man's greed.
We do not inherit the earth from our ancestors; we borrow it from our children
Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has.
It is horrifying that we have to fight our own government to save the environment.
We won't have a society if we destroy the environment.
What we are doing to the forests of the world is but a mirror reflection of what we are doing to ourselves and to one another.
When one tugs at a single thing in nature, he finds it attached to the rest of the world.
Thank God men cannot fly, and lay waste the sky as well as the earth.
I think the environment should be put in the category of our national security. Defense of our resources is just as important as defense abroad. Otherwise what is there to defend?
Conservation is a state of harmony between men and land.
Nature provides a free lunch, but only if we control our appetites.
The environment is everything that isn't me.
Be The Peace You Wish To See In The World!
There's so much pollution in the air now that if it weren't for our lungs there'd be no place to put it all.
Till now man has been up against Nature; from now on he will be up against his own nature.
Because we don't think about future generations, they will never forget us.
What is the use of a house if you haven't got a tolerable planet to put it on?
The use of solar energy has not been opened up because the oil industry does not own the sun.
There are no passengers on spaceship earth. We are all crew.
The activist is not the man who says the river is dirty. The activist is the man who cleans up the river.