Rhetoric as a Technique and a Mode of Truth: Reflections on Chaim Perelman

Abstract

In one of his many criticisms of The New Rhetoric, the philosopher Henry W. Johnstone Jr. complains about its chapter "The Dissociation of Concepts" that "one is never sure whether [Chaïm Perelman is] thinking of rhetoric primarily as a technique or primarily as a mode of truth. One wonders, too, what status [he is] claiming for the book itself" (1978, 99). 1 Since the chapter in question largely concerns philosophical argument, the doubt is very much apropos. But the response to Johnstone's implied question--a response that Johnstone does not think available--is that the correct answer legitimately varies in a systematic way. While in philosophical contexts, and, incidentally, in scientific ones, rhetoric is invariably a mode of truth, in contexts of public address it need not be. To see how this systematic variation might be the case, I will focus, as does Johnstone, on the dissociation of concepts as a test case of the robustness of a rhetoric oriented toward truth. To do so, I must first define dissociation and then come to terms with the way in which concepts are dissociated in public address, in philosophy, and in science. In treating these examples, however, I must be wary. While they will vary systematically according to field, they are not each instances of any general "law" of dissociation. Johnstone is surely right to "doubt whether there is any general logic of dissociation; there is only the logic of each particular dissociation, generated in each case by a particular problem" (99). When I have run through my examples, I can return to Johnstone's question about the status of rhetoric and of Perelman's study of it.