— Theodore Roosevelt
“A nation that destroys its soils destroys itself. Forests are the lungs of our land, purifying the air and giving fresh strength to our people.”
— Franklin D. Roosevelt
"If we've learned any lessons during the past few decades, perhaps the most important is that preservation of our environment is not a partisan challenge; it's common sense. Our physical health, our social happiness, and our economic well-being will be sustained only by all of us working in partnership as thoughtful, effective stewards of our natural resources."
— Ronald Reagan
"'Environment' is not an abstract concern, or simply a matter of aesthetics, or of personal taste — although it can and should involve these as well. Man is shaped to a great extent by his surroundings. Our physical nature, our mental health, our culture and institutions, our opportunities for challenge and fulfillment, our very survival — all of these are directly related to and affected by the environment in which we live. They depend upon the continued healthy functioning of the natural systems of the Earth."
— Richard M. Nixon
“We must not only protect the country side and save it from destruction, we must restore what has been destroyed and salvage the beauty and charm of our cities … Once our natural splendor is destroyed, it can never be recaptured. And once man can no longer walk with beauty or wonder at nature, his spirit will wither and his sustenance be wasted.”
— Lyndon B. Johnson
"The old rules may say we can't protect our environment and promote economic growth at the same time, but in America, we've always used new technologies — we've used science; we've used research and development and discovery to make the old rules obsolete."
— Barack Obama