Business has to change the way it does business, or we will make no significant changes in the way we relate to the earth.

The earth is a tremendous gift. There is nothing else like it in the known universe. I want to leave it the way I found it.

When we realize we can make a buck cleaning up the environment, it will be done!

The people of the future will say, meat-eaters in disgust and regard us in the same way that we regard cannibals and cannibalism.

Business must be the solution, not the problem.

It's not an if - we're going to have to change. Oil is simply going to be gone.