I have a John Deere riding lawnmower which I really like and am proud of. With the mower came an instruction book, the truth which sets the mower free to do that for which it was created. Now suppose that I want to give my mower a special treat, since I am proud of it and want it to really cut well this summer. So I fill the tank with chocolate syrup. We all know that chocolate syrup is more fun than gasoline—it tastes better; it’s a real treat. But the John Deere will be destroyed. Why? Because its freedom to perform requires submission to the law of lawnmower liberty.