Source, in full
The study of management has been omitted from the student's training until comparatively recently, for a very different reason than was psychology. It was never doubted that a knowledge of management would be of great value to anyone and everyone, and many were the queer schemes for obtaining that knowledge after graduation. It was doubted that management could be studied otherwise than by observation and practice. Few teachers, if any, believed in the existence, or possibility, of a teaching science of management. Management was assumed by many to be an art, by even more it was thought to be a divinely bestowed gift or talent, rather than an acquired accomplishment. It was common belief that one could learn to manage only by going out on the work and watching other managers, or by trying to manage, and not by studying about management in a class room or in a text book; that watching a good manager might help one, but no one could hope really to succeed who had not " the knack born in
Notes from Wikiquote
p. 2-3