This is for health food fiends, the natural-fabrics gang, and all those green-head environmental hustlers who stomp around in the “natural”: Your key word is meaningless. Everything is natural. Everything in the universe is a part of nature. Polyester, pesticides, oil slicks, and whoopee cushions. Nature is not just trees and flowers. It’s everything. Human beings are part of nature. And if a human being invents something, that’s part of nature, too. Like the whoopee cushion.
–George Carlin, “Braindroppings”