"Here is your country. Cherish these natural wonders, cherish the natural resources, cherish the history and romance as a sacred heritage, for your children and your children’s children. Do not let selfish men or greedy interests skin your country of its beauty, its riches or its romance."
— Theodore Roosevelt
"You cannot get through a single day without having an impact on the world around you. What you do makes a difference, and you have to decide what kind of difference you want to make."
— Jane Goodall
"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."
— Chief Seattle
"It seems to me that the natural world is the greatest source of excitement; the greatest source of visual beauty; the greatest source of intellectual interest. It is the greatest source of so much in life that makes life worth living."
— David Attenborough
"The environment is where we all meet; where all have a mutual interest; it is the one thing all of us share."
— Lady Bird Johnson
"Earth provides enough to satisfy every man's need, but not every man's greed."
— Mahatma Gandhi
"Sooner or later, we will have to recognize 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."
— Evo Morales