Phasing out the human race will solve every problem on earth, social and environmental.
My heroes used to be cowboys.
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.
The optimum human population of earth is zero.
Humanity is the cancer of nature.
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.