Someone once said, “There’s a sucker born every minute.” Who first said it is disputed. It has been attributed to P. T. Barnum, to a banker, and to other possible sources. Whoever said it first, it captures the spirit of skepticism perfectly. The skeptic, i.e., the one who doubts everything and everyone but himself will not credit any authority beyond himself and his own sense experience, i.e., what he knows from his own eyes, ears, nose, and touch. Such an approach to knowing things is not without its difficulties. Our senses are generally reliable but they are not infallible. Sleight of hand works because the sleight of hand artist is able to distract us or create an illusion.