Prayer does not use up artificial energy, doesn't burn up any fossil fuel, doesn't pollute. Neither does song, neither does love, neither does the dance.
— Margaret Mead

Here in the United States we turn our rivers and streams into sewers and dumping-grounds, we pollute the air, we destroy forests, and exterminate fishes, birds, and mammalsnot to speak of vulgarizing charming landscapes with hideous advertisements. But at last it looks as if our people were awakening. Many leading men, Americans and Canadians, are doing all they can for the Conservation movement.
— Theodore Roosevelt

For years, my master had done his utmost to pollute my mind with foul images, and to destroy the pure principles inculcated by my grandmother, and the good mistress of my childhood.
— Harriet Ann Jacobs

There is one topic peremptorily forbidden to all well-bred, to all rational mortals, namely, their distempers. If you have not slept, or if you have slept, or if you have headache, or sciatica, or leprosy, or thunder-stroke, I beseech you, by all angels, to hold your peace, and not pollute the morning.
— Ralph Waldo Emerson

For visions come not to polluted eyes.
— Mary Howitt