I really wonder what gives us the right to wreck this poor planet of ours. --Kurt Vonnegut Jr.
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
Earth provides enough to satisfy every man's needs, but not every man's greed. --Mahatma Gandhi