„[Professionals] define the problems of their art similarly and agree on criteria for an acceptable solution. They know the history of previous attempts to solve those problems, or some of it, and the new problems those attempts generated. They know the history of work like theirs, so that they, their support personnel, and their audiences can understand what they have attempted and how and to what degree it works.“
— Howard S. Becker American sociologist 1928
Art Worlds (1982), p. 230.