As the years pass and the physician practices medicine in a particular field, he cannot help acquiring not only actual knowledge, if he has the ordinary intelligence and ability to grasp ideas and is ever on the alert with his eyes and ears open but his mouth shut, but also many concepts which have a philosophic as well as a scientific background. He will learn much of the art of medicine that today, in many instances, has been relegated to an insignificant place in the life of the physician. He will and should learn much of the proper way to live with his fellow man and his colleagues in medicine. He will acquire a broadening of his perspective, a greater ability to evaluate situations and a better sense of judgment. Unfortunately, he may also develop a dogmatism which at times will only lead to a narrowing of his perspective, a