quote [ It has been said that when the late Justice Potter Stewart penned his now-famous or (infamous?) definition of pornography, the ?I-know-it-when-I-see-it? test in Jacobellis v Ohio, he was remembering his duty with the U.S. Navy during World War II. While stationed in Morocco, he knew all sorts of material exotic, erotic, pornographic, indecent, and lewd was available for price. ]