" The trouble is that such categories do not take us much further. They are academic abstractions that do not do justice to the process-character of the observable social data to which they refer. Underlying them is the idea that the tidy division into epochs we usually find in history books best fits the actual course of social development. Each figure who is known through the magnitude of his or her achievement is then allocated to one epoch or the other as its high point. On closer examination, however, it not uncommonly emerges that outstanding achievements occur most frequently at times which could at most be called transitional phases if static concepts of epochs are used. In other words, such achievements arise from the dynamics of the conflict between the canons of older declining classes and newer rising ones. "

― Norbert Elias , Mozart: Portrait of a Genius