The human race could go extinct and I for one would not shed any tears.

The optimum human population of earth is zero.

When a chainsaw rips into a 2,000 year old redwood tree, it's ripping into my guts. When a bulldozer plows through the Amazon rainforest, it's ripping through my side. And when a Japanese whaling ship fires an exploding harpoon into a great whale it's my heart that's being blown to smithereens.

We must all work together in order to save the environment and the world that we live in from further change.

We advocate biodiversity for biodiversity's sake. It may take our extinction to set things straight.

Capitalism is a cancer in the biosphere.

The AIDS epidemic, rather than being a scourge, is a welcome development in the inevitable reduction of human population... If it didn't exist, radical environmentalists would have to invent it.