Dean Donald Tapley at Columbia University College of P&S once said to some of us students that when you know what you don't know, then you're ready to be a physician. One of my recent patients found a more eloquent version of this philosophical state: He who knows he knows, knows NOT. He who knows he knows not, knows ALOT. Very appropriate to being a Rheumatologist. John Hicks,MD,FACP,FACR