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.
Elwyn Brooks White
A virgin forest is where the hand of man has never set foot.
How long can men thrive between walls of brick, walking on asphalt pavements, breathing the fumes of coal and of oil, growing, working, dying, with hardly a thought of wind, and sky, and fields of grain, seeing only machine-made beauty, the mineral-like quality of life?
Charles A. Lindbergh
To waste, to destroy our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by right to hand down to them amplified and developed.
As people alive today, we must consider future generations: a clean environment is a human right like any other. It is therefore part of our responsibility toward others to ensure that the world we pass on is as healthy, if not healthier, than we found it.
What's the use of a fine house if you haven't got a tolerable planet to put it on?
Henry David Thoreau
We won't have a society if we destroy the environment.
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.
Some day the earth will weep, she will beg for her life, she will cry with tears of blood. You will make a choice, if you will help her or let her die, and when she dies, you will die too.
John Hollow Horn
A spaceship is a delicately balanced environment. Every element that doesn't contribute to the overall functioning of the system is by definition working against it. The same is true of our planet - our mothership - though sadly, most architecture today is slowly fatal to nature's systems.
It is horrifying that we have to fight our own government to save the environment.
Environmental damage such as graffiti, fly-posting and general littering is a menace that is becoming all too prevalent, not just in inner cities but in many communities - urban and rural.
We shall require a substantially new manner of thinking if mankind is to survive.
We do not inherit the earth from our ancestors, we borrow it from our children.
Native American Proverb
Our children may save us if they are taught to care properly for the planet; but if not, it may be back to the Ice Age or the caves from where we first emerged. Then we'll have to view the universe above from a cold, dark place. No more jet skis, nuclear weapons, plastic crap, broken pay phones, drugs, cars, waffle irons, or television. Come to think of it, that might not be a bad idea.
When a man says to me, "I have the intensest love of nature," at once I know that he has none.
Ralph Waldo Emerson
Civilization wrecks the planet from seafloor to stratosphere.
Of course, one of the most serious reflections that we all need to take in and deal with is the way we human beings are exploiting and polluting our natural environment and the very Earth we live on.
Shakti Gawain, The Path of Transformation How Healing Ourselves Can Change The World