I claim the differentiation of style, which is based on the prepon; a hierarchy of forms of expression corresponds to a hierarchy of topics. Every offense against it is cacozelia ‘affectation of style’
Auerbach argues that classical stylistic differentiation is not mere convention but a principled hierarchy grounded in the concept of decorum, in which subject-matter and register are structurally coupled.
, Mimesis: The Representation of Reality in Western Literature, 1953thesis