Abstract

In chapters on the Gorgias and the Meno in his 1997From Plato to Postmodernism, James Kasterly argues that an important point made in the Gorgias is that Socrates fails to persuade Callicles. Its lesson is that philosophers will never succeed in persuading nonphilosophers if they rely on dialectic, with its premises grounded in epistemology (32, 34), and in the Meno, he finds a type of dialectic that functions rhetorically (67). In this new book, The Rhetoric of Plato's “Republic”: Democracy and the Philosophical Problem of Persuasion, Kastely builds on his earlier work. He reads the Republic as Plato's effort to address the implicit challenge posed by Socrates' defeat in the Gorgias. Plato's purpose in the Republic, he claims, is to set forth and enact an alternative to dialectic, an alternative that he identifies as a philosophical rhetoric (that is, a rhetoric for philosophers), that would enable philosophers to persuade nonphilosophers to value justice and morality above all else. The Republic, on his reading, not only (if obliquely) argues for a rhetorical alternative to dialectic but also practices it and thus attempts to constitute interlocutors and engaged readers as the moral, justice-loving subjects of a new republic.The crucial passage that generates Kastely's reading occurs at the beginning of book 2, when Glaucon enters the conversation after Socrates' exchange with Thrasymachus in book 1 has stalled. Thrasymachus, exhausted and frustrated by Socrates' dialectic interrogation and by Socrates' refusal to allow him to state his opinion directly (350e), has withdrawn from genuine engagement; instead, he placidly agrees with whatever Socrates proposes (351c). Glaucon challenges Socrates: does he want really to persuade them or just give the appearance of having persuaded them (357a–b)? Kastely argues that here Glaucon is referring to the kind of “persuasion” that Socrates has practiced on Thrasymachus—a nit-picking (from Thrasymachus's point of view) dialectic that wins on technical points but that changes few people's minds and hearts. Yet there is a potential problem with Kastely's interpretation, namely, that Glaucon does not state that the distinction he intends is between two types of persuasion (artificial and real); rather he states that the distinction is between two types of arguments on behalf of justice—arguments that propose behaving justly as prudent for the benefits that treating others well confers and arguments for living justly for its own sake, without reference to benefits. However, Glaucon may indeed mean both, as Kastely maintains. And in support of Kastely's interpretation, there are other references in the Republic to dialectic as a problematic way of convincing nonphilosophers: most noteworthy (among several) is Adeimantus's insistence that although philosophers can as a result of their training often defeat nonphilosophers in dialectical argument, this “victory” does not mean they have really persuaded their opponent or anyone (487b–d).For Kastely, the development and enactment of a rhetoric for philosophers is at the heart of the Republic: “Is it possible, then, for a philosopher to discover a rhetoric that would permit philosophy to have some sort of purchase on public opinion and persuade an audience of the truths philosophy has discovered? The Republic is aware of the importance of this question and has chosen to foreground it dramatically. It understands that, as a dialogue, it must provide an answer to that question, if philosophy is to be anything other than a deeply limited and esoteric activity. … For this dialogue simply not to self-destruct, Socrates has to make the case for a viable philosophical rhetoric” (122).The title of chapter 4, “Confronting Obstacles to Persuasion,” captures the major theme in much of the rest of Kastely's argument. The most formidable obstacle that the philosopher who would persuade nonphilosophers confronts is ideology, though Kastely does not use this term, perhaps regarding its usage in this context as ahistorical. In Kastely's words, it is the problem of our failure to recognize that “the desires of the soul have been shaped by a culture and are never encountered in innocent form” (66) or that “the work of political culture is masked, and it is mistakenly read as if current values and desires are the product of nature” (206). With regard to justice, in the view of most people we are just out of fear of punishment or of retaliation if we are unjust; if we could practice injustice to our advantage with impunity (the myth of Gyges's ring), we would, and, moreover, it would be natural for us to do so. Thus, the first challenge to the philosopher who would persuade nonphilosophers that it is in our interest to be just even if it means losing an advantage is to bring them to understand that all knowledge is “rhetorically mediated” (66). Rhetoric is not the problem but the means of cure: its duty is to make citizens aware of the rhetorical character of what they experience as natural.In chapters 5, 6 and 7, Kastely explores the particular obstacles Socrates faces if his aim is to persuade Athenians of what they may regard as ideologically counterintuitive and unnatural, namely, that a life grounded in justice is the best life. For instance, Socrates' advocacy of women serving as guardians (452a) is, on Kastely's reading, motivated not only by Socrates' belief that there is inherent value in women serving as guardians but also and primarily by his desire to illustrate how a reigning ideology blinds his interlocutors to alternative possibilities (101). While Socrates' interlocutors regard the proposal as unnatural, Socrates argues that thinking of women as guardians is only unconventional but nevertheless thoroughly reasonable.The greatest challenge Socrates faces in the Republic is persuading his listeners that philosophers should be kings. On hearing the proposal, Glaucon warns Socrates that were he to issue the proposal publicly he would be greeted with not only disbelief but also violent resistance (473e). Kastely observes that “Socrates is fully aware of the general population's low estimation of philosophy [and philosophers],” and his discussion of philosophy is a “self conscious rhetorical act designed to mollify an angry audience and to transform that anger into calmness” (109–10). If the response to the proposal were to be as extreme as Glaucon envisions, it is surely unlikely that the crowd would be prepared to engage in dialectic. The foremost rhetorical means Socrates uses to overcome these ideological prejudices are the famous images and analogies of books 6 and 7: the sun, the divided line, and the parable of the cave. Kastely reads these tropes as rhetorical versions of Platonic philosophy that can persuade nonphilosophers, treating them as evidence for his thesis that the Republic argues for and practices a rhetorical presentation of philosophy that is superior to dialectic, at least when it comes to discussing philosophy with nonphilosophers.But there is at least one problem with this interpretation of books 6 and 7 of the Republic. The argument that underpins Kastely's reading—that the Republic is about a search for a rhetorical alternative to dialectic—seems to me to rest on the assumption that Socrates could have presented a more technical and accurate description of these truths but instead took into consideration the limitations of his audience. He chose images because they were more effective than dialectic's definitions and divisions. But Socrates claims that the nature of the subject requires use of images. In a subsequent chapter, Kastely concedes that “even Socrates himself cannot claim with certainty that he has achieved a full philosophical vision” of goodness (157). At least through the period of the Republic, Socrates notoriously relies on analogies and images to describe the good. Socrates resorts to images because he has no choice, not because rhetorically images are the preferred means for a particular audience. In Kastely's defense, it is true that these images have an affective dimension that makes them appealing, and the fact that there are no alternative ways to express this vision does not make the images less rhetorical. They function rhetorically, neither dialectically as argument nor as the simplification of teaching.That a specific philosophical rhetoric is not thematized as such in the Republic leads Kastely almost necessarily to argue that Plato and Socrates enact their program through mimesis rather than overtly arguing for it. Socrates in effect says do as I do here rather than do what I say, since I don't say much about rhetoric. For Kastely, Socrates' criticism of the mimesis of epic poetry and drama is tacit admission of its effectiveness (210), and he would in fact employ it to a good end to advance his own program: “While the Republic ostensibly argues for a certain kind of rhetorical constitution through a specifically prescribed curriculum, what it offers its readers is in fact a different kind of education embodied in the mimetic presentation of an extended act of persuasion. Presumably, Plato intends this kind of education or rhetorical constitution for the actual readers of the dialogue—the readers who have already been subjected to the cultural influences that Socrates would undo or minimize” (79). At the heart of this mimetic theory is “an act of constitution or identification” (217). On Kastely's reading, the rhetoric Socrates enacts in the Republic is obviously not the rhetoric that Socrates criticizes in the Gorgias. The rhetoric that Kastely sees in the Republic is to be “understood as a practice of individual and political constitution” (220). This Burkean description is not one that Plato would associate with rhetoric, though it is not impossible (given the way he envisions dialectic functioning) that Plato could imagine a type of dialectic that is similarly transformative. There are many varieties of dialectic in Plato, including less rule-driven varieties that resemble the semidisciplined conversation of the Republic. Kastely has appropriated for rhetoric what others (including Plato) might see as a version of dialectic. But perhaps this objection reduces to a quibble about names.Socrates' famous admission in book 9 that only divine intervention could bring about the rule of philosopher-kings would seem to announce the failure of the philosophical rhetoric that Socrates (on Kastely's reading) had hoped would mimetically persuade interlocutors and readers. Kastely's response to the challenge that book 9 presents is twofold. With most other commentators, he argues that Plato never intended to present an ideal polis in the Republic: the description of the guardians, the philosopher king, and so forth was never to be taken literally. The Republic is not about the formation of an ideal state; the description of the kallipolis that dominates is in fact a trope to show the formation of the properly ordered soul. If this is the case, then Socrates' admission does not thwart his purpose. Secondly, Kastely argues that Socrates' withdrawal from politics can be read as a rejection of the imposition of the philosophical life by a philosopher, who is, after all, a king, in favor of the transformation of individual citizens through the rhetorical means that he sees Socrates' enacting (181).Kastely's is a bold thesis. It asks us to accept not only that Plato came to accept a socially responsible role for rhetoric in the polis but also that in the Republic Plato acknowledges epistemologically that there is no escape from culture, that all “knowledge” is rhetorically mediated. It is also an honest book, as Kastely raises and addresses objections to his reading. Because it is an honest, rigorous book, I benefited immensely from the encounter with it, though I was ultimately not persuaded by its thesis.