Never set goals you can reach in your lifetime.

I like snakes. I like hummingbirds. There's nothing on earth I don't like. Frogs. Salamanders. The bunnies, the giraffes, the hippopotamuses.

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.

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

Sports is like a war without the killing.

The world and life have been mighty good to me. And I want to put something back.

The next most dangerous thing [after nuclear proliferation] is probably... global warming, and then, right behind that are overpopulation -- we need to get serious about family planning-and trying to alleviate poverty, to get clean, renewable energy, probably with solar panels to the billion and a half people in the world who don't have access to electricity.