"When you start out on a career in the arts, you have no idea what you're doing. This is great," says bestselling author Neil Gaiman in his commencement address to the class of 2012 at the University of the Arts in Philadelphia. "People who know what they're doing know the rules and they know what is possible and what is impossible. You do not. And you should not. The rules on what is possible and impossible in the arts were made by people who had not tested the bounds of the possible by going beyond them. And you can."