By John W. Kleinig I am fascinated by the slogans that people wear on their sweatshirts. They tell us a lot about them and their convictions. There are two that caught my eye at an airport some years ago. The first, which has since become quite common, was: “My body, my choice!” The second, which is far too long to become popular, was even more telling. It ran: “Your body may be a temple, but mine’s an amusement park!” These slogans show how many people regard their bodies in our so...