A true conservationist is a man who knows that the world is not given by his fathers, but borrowed from his children.
Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts.
Sooner or later, we will have to recognise that the Earth has rights, too, to live without pollution. What mankind must know is that human beings cannot live without Mother Earth, but the planet can live without humans.
Trees are the earth's endless effort to speak to the listening heaven.
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'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.
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.
Celebrate Earth Day every day.
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.
Thank God men cannot fly, and lay waste the sky as well as the earth.
What is the use of a house if you haven't got a tolerable planet to put it on?
Suburbia is where the developer bulldozes out the trees, then names the streets after them.
I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority.
Climb the mountains and get their good tidings.
An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment...
When one tugs at a single thing in nature, he finds it attached to the rest of the world.
To see a world in a grain of sand And a heaven in a wild flower, Hold infinity in the palm of your hand, And eternity in an hour.
You can't be suspicious of a tree, or accuse a bird or a squirrel of subversion or challenge the ideology of a violet.
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.
I love not man the less, but Nature more.
Look deep into nature, and then you will understand everything better.
I wake up in the morning asking myself what can I do today, how can I help the world today. I believe in what I do beyond a shadow of a doubt. I gave my word to this tree and to all the people that my feet would not touch the ground until I had done everything in my power to make the world aware of this problem and to stop the destruction.
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.
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.
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