No one can do it all. Just as no physician expected to be an expert in all aspects of medicine, no mathematics teacher in the 1990s can reasonably be expected to be an expert in all aspects of teaching mathematics. We must select a few areas of focus and balance the fear and worries we understandably have in some areas with the pride of accomplishment and success we find in other areas. We must accept the inevitability of a sense of inadequacy and use it to stimulate the ongoing growth and learning that characterize the true professional.