We never know the worth of water till the well is dry.
Nature provides a free lunch, but only if we control our appetites.
We do not inherit the earth from our ancestors; we borrow it from our children
Humanity is on the march, earth itself is left behind.
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.
Forests are the lungs of our land.
The wealth of the nation is its air, water, soil, forests, minerals, rivers, lakes, oceans, scenic beauty, wildlife habitats and biodiversity... that's all there is. That's the whole economy. That's where all the economic activity and jobs come from. These biological systems are the sustaining wealth of the world.
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?
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.
There would be very little point in my exhausting myself and other conservationists themselves in trying to protect animals and habitats if we weren't at the same time raising young people to be better stewards.
I only went out for a walk and finally concluded to stay out till sundown, for going out, I found, was really going in.
There are no passengers on spaceship earth. We are all crew.
Earth provides enough to satisfy every man's needs, but not every man's greed.
The earth is what we all have in common.
Thank God men cannot fly, and lay waste the sky as well as the earth.
Until man duplicates a blade of grass, nature can laugh at his so called scientific knowledge.
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.
To see a world in a grain of sand and a heaven in a wildflower.
We say we love flowers, yet we pluck them. We say we love trees, yet we cut them down. And people still wonder why some are afraid when told they are loved.
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.
Trees are the earth's endless effort to speak to the listening heaven.
All things are bound together. All things connect.
Everything is connected. Connectivity is going to be the key to addressing these issues, like contaminants and climate change. They're not just about contaminants on your plate. They're not just about the ice depleting. They're about the issue of humanity. What we do every day - whether you live in Mexico, the United States, Russia, China ... can have a very negative impact on an entire way of life for an entire people far away from that source.
In America today you can murder land for private profit. You can leave the corpse for all to see, and nobody calls the cops.
Nature does not hurry, yet everything is accomplished.
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