A "Conception" of Truth in Plato's Sophist

1. Introduction

Plato's solution to the problem of falsehood carries a notorious reputation which sometimes overshadows a variety of interesting developments in Plato's philosophy. One of the less-noted developments in the Sophist is a nascent conception of truth which casts truth as a particular relation between language and the world. F. M. Cornford, for one, in his translation and commentary on the Sophist takes Plato's account of truth to involve something like correspondence: "The [true] statement as a whole is complex and its structure corresponds to the structure of the fact. Truth means this correspondence."¹ In more general contexts, we find A. N. Prior claiming in his Encyclopedia of Philosophy entry on the correspondence theory of truth: "Aristotle did not originate the correspondence theory but took it over from Plato's Sophist."²

However, all this assumes a lot about Plato, much less Aristotle. For one, it assumes that to claim that the statement 'Theaetetus is sitting' is true is to claim that it is true because it corresponds with the fact that Theaetetus is sitting. Other scholars, for a wide variety of interpretational reasons, have been reluctant to accept Cornford's view, but few offer any explanation of what sort of account of truth we might ascribe to Plato by the end of the Sophist. Michael Frede claims that Plato thinks a true statement is true precisely if a form is something that is with reference to a subject. Frede is quiet about whether this expresses a particular conception of truth, but if he's right, truth involves something other than correspondence. Alfred Tarski has argued at length that truth is a simpler notion than that of correspondence or coherence or whatever. In fact, one claim he emphasizes about his own "conception" of truth is that it is similar to the classical conception of truth we find in places like Aristotle's Metaphysics—a conception of truth which is formulated in Greek in very much the same way Plato formulates it in the Sophist. Unfortunately, Tarski never sufficiently explains exactly what it is about the classical conception that makes it closer to his own.

I shall argue that in a very general sense Tarski is right about the ancient conception of truth, but this is not to claim that Tarski's own conception of truth can be found in Plato. By interpreting in a certain way Plato's solution to the paradox of not being and his solution to the problem of falsehood, I argue that the account of true and false statement that emerges within the discussion of not being and falsehood generally neither entails nor outwardly suggests any of the traditional characterizations of a correspondence "theory" of truth.³ On the contrary, what emerges from the Sophist is a very minimalistic "conception" of truth which requires neither positing the existence of facts or states of affairs nor formulating a precise, explanatory definition of truth. Aristotle's discussion of truth in the Categories and De Interpretatione is in many respects remarkably similar to Plato's; and I argue that although some, including W. D. Ross and J. L. Ackrill, have found forms of the correspondence theory in these early works, Aristotle's conception of truth makes no radical departures from Plato's and in fact stands as an obvious extension of the ideas about truth Plato presents in the Sophist. In the final section, I offer a few reasons why one should not expect to find the emergence of a "theory" of truth in the Sophist. If my general interpretation of Plato is correct, we should revise at least one historically significant footnote to Plato accordingly: Plato did not father the correspondence theory of truth and those claiming otherwise risk anachronistically attributing a problem-laden theory to Plato and/or missing one of Plato's points about the fundamental nature of truth.

2. The Target Passage: Sophist 2 6 3 B 4

Interesting philosophical developments in Plato's dialogues are frequently obscured by vexing translational issues, and the Sophist certainly contains a few. In fact, Plato's account...