Till now man has been up against Nature; from now on he will be up against his own nature.
Plans to protect air and water, wilderness and wildlife are in fact plans to protect man.
The only way forward, if we are going to improve the quality of the environment, is to get everybody involved.
I only went out for a walk and finally concluded to stay out till sundown, for going out, I found, was really going in.
The universe is not required to be in perfect harmony with human ambition.
There is pleasure in the pathless woods, there is rapture in the lonely shore, there is society where none intrudes, by the deep sea, and music in its roar; I love not Man the less, but Nature more.
Never does nature say one thing and wisdom another.
They kill good trees to put out bad newspapers.
The earth we abuse and the living things we kill will, in the end, take their revenge; for in exploiting their presence we are diminishing our future.
We never know the worth of water till the well is dry.
When one tugs at a single thing in nature, he finds it attached to the rest of the world.
Earth provides enough to satisfy every man's needs, but not every man's greed.
Climb the mountains and get their good tidings. Nature's peace will flow into you as sunshine flows into trees. The winds will blow their own freshness into you, and the storms their energy, while cares will drop away from you like the leaves of Autumn.
Suburbia is where the developer bulldozes out the trees, then names the streets after them.
Oh Beautiful for smoggy skies, insecticided grain, For strip-mined mountain's majesty above the asphalt plain. America, America, man sheds his waste on thee, And hides the pines with billboard signs, from sea to oily sea.
What is the use of a house if you haven't got a tolerable planet to put it on?
Thank God men cannot fly, and lay waste the sky as well as the earth.
A true conservationist is a man who knows that the world is not given by his fathers, but borrowed from his children.
It is time for a sustainable energy policy which puts consumers, the environment, human health, and peace first.
Economic advance is not the same thing as human progress.
You can't be suspicious of a tree, or accuse a bird or a squirrel of subversion or challenge the ideology of a violet.
If the bee disappeared off the face of the earth, man would only have four years left to live.
Let us a little permit nature to take her own way; she better understands her own affairs than we.
We could have saved the earth, but we were too damned cheap.
Man is a complex being: he makes deserts bloom - and lakes die.
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