I've never run into a guy who could win at the top level in anything today and didn't have the right attitude, didn't give it everything he had, at least while he was doing it; wasn't prepared and didn't have the whole program worked out.

There is no greater legacy that we can leave our children and grandchildren than a peaceful and safer world.

We're too many people; that's why we have global warming...on a voluntary basis, everybody in the world's got to pledge to themselves that one child is it.

We must go through a natural revolution if we are to survive on earth. We need to change people's perceptions. If there's no environment, there's no human race. We are in a state of global denial.

I think Captain Cousteau might be the father of the environmental movement.

It was okay for people to write negative things about me just as long as they spelled my name right.

I travel a lot. I'm on the move.