My position is this. If we can't protect sanctuaries, if we can't save the whales, the sharks, the fish, our oceans will die.

We need to radically and intelligently reduce human populations to fewer than one billion. We need to eliminate nationalism and tribalism and become Earthlings. And as Earthlings, we need to recognize that all the other species that live on this planet are also fellow citizens and also Earthlings. This is a planet of incredible diversity of life-forms; it is not a planet of one species as many of us believe.

If you don't know an answer, a fact, a statistic - make it up on the spot.

I reject the idea that humans are superior to other life forms. . . Man is just an ape with an overly developed sense of superiority.

Almost all theological thought is anthropocentric and I just cannot buy into the anthropocentric ideology. Basically we're a bunch of conceited apes.

In other words, people should be placed in parks within ecosystems instead of parks placed in human communities. We need vast areas of the planet where humans do not live at all and where other species are free to evolve without human interference. We need to radically and intelligently reduce human populations to fewer than one billion.

Intelligence is the ability of a species to live in harmony with its environment.