In Socrates’s dialogue with Polus, two important ideas are pursued: (1) there is a human soul that can be cared for by intelligent judges who mete out justice in the form of punishment. By further pursuing this claim, Socrates is advancing an argument that he began when talking with Gorgias: there is a truly good way to manage the healthy human soul—this is called “justice.” Though Socrates makes no pretension to explaining what exactly constitutes justice, he certainly makes it clear that he believes in a foundational notion of justice. (2) Through a certain manner of dialogue, one can pursue the truth. This manner of dialogue is referred to as “Socratic elenchus,” and Socrates explains it on pp. 45, 47 (“truth can never be refuted”), 48, 51, 60-2. According to Socrates, oratory aims at widespread agreement, but does not teach the art of reasoning. Socratic elenchus, on the other hand, begins with premises that both parties can agree to, eliminating contradictions, and building upon consistencies to reach a higher truth. In the dialogue with Callicles, Socrates tries to enact the same kind of reasonable dialogue that he and Polus performed, but Callicles is notably recalcitrant. Socrates gets Callicles to agree to a definition of “stronger” for instance on p. 74, but when Socrates is then able to leverage that definition into an argument against Callicles, Callicles decides to change his definition (p. 78).
In these two interchanges, we encounter our first real example of an ideal form of public argument and an explanation about why engaging in this model of debate will benefit society: pursuing truth through elenchus teaches us how to guide and care for the healthy soul. We also see an example of this method going wrong. According to Socrates, Callicles violates several principles of “good” argumentation: he equivocates (p.76) (changes definitions already agreed to so that he won’t have to concede defeat); he assaults his interlocutor (p.75), not addressing truth but rather side-tracking us into issues of character; and he eventually just refuses to accept that he might be mistaken (p. 78). Why would Plato provide us with a careful explanation of how and why to engage in good public argument and then show us an example of this practice going wildly wrong?
Perhaps Plato gives us this demonstration of poor public debate (by Socratic standards) to show us that we can only strive for better debate and possibly that perfect debate can never be had. It is in our very human nature to be competitive on some level, even if it is minute, and this hinders our sharing of truths and enlightening of one another. Moreover, I highly disagree with Socrates' statement that "truth can never be refuted". It seems that to Socrates, everything is very clear cut and black and white. This is a very unrealistic view of the world, and truth for that matter.
amy_lee