Medieval literature is argumentative, since it argues for an idealized vision of reality acceptable to a proposed audience. Its narrative mode is description, performed according to the principles of the art of topical invention, derived from Cicero's De Inventione. The topoi or loci are features (circumstantiae) of a person or thing that are common to it as a class, such as tempus or locus for things. When filled out, according to the point of view desired by the author, public, context, (...) etc., they become the attributes (argumenta) of a particular human being or action.According to the author, all descriptions should be interpreted by reference to such a technique of topical invention, a method which will allow new explanations of the texts. The examples of the locus amoenus in various Latin and French works show how traditional and conventional models were adapted and specialized, by various devices, to fit new formal or conceptual intentions and new contexts. The examples and models proposed to the student learning composition by Masters such as Matthew of Vendôme, were given not to be copied, but to be imitated through topical invention, that is adaptation to a particular intention, through specializing devices. (shrink)