Citações acerca do ambiente na Terra

"Let every individual and institution now think and act as a responsible trustee of Earth, seeking choices in ecology, economics and ethics that will provide a sustainable future, eliminate pollution, poverty and violence, awaken the wonder of life and foster peaceful progress in the human adventure."

— John McConnell, founder of International Earth Day

"You must be the change you wish to see in the world."

— Mahatma Gandhi

"All that is necessary for evil to triumph is for good men to do nothing."

— Edmund Burke

"It's a job that's never started that takes the longest to finish."

— J.R.R. Tolkien

"We must adjust to changing times and still hold to unchanging principles."

— Jimmy Carter

"For what is the hope of the hypocrite, though he hath gained, when God taketh away his soul?"

— Job 27:8

"The superior man seeks what is right; the inferior one, what is profitable."

— Confucius

"To know that even one life has breathed easier because you have lived, that is to have succeeded."

— Ralph Waldo Emerson

"Peasant people ... don't have a chance to share in the riches that the planet can offer because some people are taking off so much of the pleasures of this world, and there's only so much to go around."

— Sister Dorothy Stang, an eco-activist nun from Dayton, Ohio, who in 2005 was murdered in the Brazilian Amazon

"The ultimate test of man's conscience may be his willingness to sacrifice something today for future generations whose words of thanks will not be heard."

— Gaylord Nelson
former governor of Wisconsin, co-founder of Earth Day

"To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment."

— Ralph Waldo Emerson

"Do not wait for extraordinary circumstances to do good action; try to use ordinary situations."

— Jean Paul Richter, German Romantic novelist and humorist

"Determine never to be idle. No person will have occasion to complain of the want of time, who never loses any. It is wonderful how much may be done, if we are always doing."

— Thomas Jefferson

"Your descendants shall gather your fruits."

— Virgil

"A person writing at night may put out the lamp, but the words he has written will remain. It is the same with the destiny we create for ourselves in this world."

— Shakyamuni