Persuasion, cooperation and diversity of rhetorics1

Persuasive discourse, either as a separate mode of discourse (Kinneavy 1971) or as a distinctive part of argumentative discourse,2 frequendy remains part of the overall writing assignment for our composition students. Although we may disagree as to how to define exactly or teach persuasive discourse in writing classrooms, we have more or less followed the tradition of Western classical rhetoric with respect to our basic understanding of it--although few of us would now restrict ourselves only to discovering in the particular case what are the available means of persuasion (Aristotle 1960: 7). For example, we teach our students different sub-types of persuasive discourse and ask them to apply ethical, emotional (pathetic) and logical proofs to their own persuasive essays; we select political speeches, polemic essays or modern advertising materials as prime examples of how different persuasive strategies and techniques can be most effectively invoked to achieve their respective objectives of winning. To varying degrees, many composition text books have adopted, and thus perpetuated this normal way of doing things with persuasive discourse.3 In so doing, however, we have--perhaps unknowingly--imparted to our students two problematic notions, which underlie much of what has been believed to be persuasive discourse. The first assumes that persuasive discourse is grounded in or predicated on conflict or confrontation, which it aims to overcome or eradicate. The second perceives audience as both external4 and oppositional, whom persuasive discourse is intended to transform or convert. It is these two notions and their probable consequences that I will discuss first in this essay. Following this discussion, I will draw upon, respectively, Grice's cooperative model of conversation (1975; 1989) and Burke's concept of (1962) to propose a new heuristic model5 of persuasive discourse, one that takes cooperation through identification as a core constituent and provides a dynamic setting that is conducive to rhetorical diversities. Finally, I will consider some potentials of this new model in our writing classrooms.