I founded Friends of the Earth to make the Sierra Club look reasonable. Then I founded the Earth Island Institute to make Friends of the Earth seem reasonable.

There is no more honorable thing any of us can do with our lives than to work to put part of the world off-limits to the activities of human beings.

Humanity is the cancer of nature.

Phasing out the human race will solve every problem on earth, social and environmental.

I believe that human overpopulation is the fundamental problem on Earth Today" and, "We humans have become a disease, the Humanpox

An Ice Age is coming and I welcome it as much-needed changing. I see no solution to our ruination of earth except for a drastic reduction of the human population.

Never Get Into An Argument With A Customer. If You Win The Argument You Will Almost Invariably Lose The Sale. And I Don't Like Your Chances For A Sale If You Lose The Argument Either.