The more clearly we can focus our attention on the wonders and realities of the universe about us, the less taste we shall have for destruction.
Earth and Sky, Woods and Fields, Lakes and Rivers, the Mountain and the Sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.
We forget that the water cycle and the life cycle are one.
The Nation that destroys its soil destroys itself.
In wilderness I sense the miracle of life, and behind it our scientific accomplishments fade to trivia.
We begin to see, therefore, the importance of selecting our environment with the greatest of care, because environment is the mental feeding ground out of which the food that goes into our minds is extracted.
The activist is not the man who says the river is dirty. The activist is the man who cleans up the river.
Man's heart away from nature becomes hard.
Our environment, the world in which we live and work, is a mirror of our attitudes and expectations.
When we try to pick out anything by itself, we find it hitched to everything else in the universe.
How wonderful it is that nobody need wait a single moment before starting to improve the world.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
We abuse land because we regard it as a commodity belonging to us. When we see land as a community to which we belong, we may begin to use it with love and respect.
Earth provides enough to satisfy every man's needs, but not every man's greed.
It is horrifying that we have to fight our own government to save the environment.
Be careful the environment you choose for it will shape you; be careful the friends you choose for you will become like them.
Humankind has not woven the web of life. We are but one thread within it. Whatever we do to the web, we do to ourselves. All things are bound together. All things connect.
Conservation is a state of harmony between men and land.
The only way forward, if we are going to improve the quality of the environment, is to get everybody involved.
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?
There are no passengers on spaceship earth. We are all crew.
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.
Dear future generations: Please accept our apologies. We were rolling drunk on petroleum.
We shall require a substantially new manner of thinking if mankind is to survive.
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