“The distinction between profession and craft is at first difficult to make, yet it is of great importance. The craftsman survives so long as the standards for judging his work are shared by different classes. The professional appears when it is necessary for the craftsman to leave his class and ’emigrate’ to the ruling class, whose standards of judgement [sic] are different.”
John Berger, “The Primitive and the Professional,” New Society 1976 (reprinted in About Looking).