 Man, he sounded like Ayn Rand over here. Good skill is the greatest possession. The things that money buys are fine. They're good. I like them. But having a skill is the most important thing. This, he said, he learned long ago from reading an issue of Esquire magazine on mastery. Pursue mastery that will fulfill your life, Seinfeld continued. You'll feel good. He said, I work because if you don't, in stand-up comedy, if you don't do it a lot, you stink.