Abstract

In his much-explored argument for the tripartition of the soul in book IV of the Republic, Socrates makes use of two principles, which I shall call the principle of opposition and the principle of qualification. The aim of the present paper is to explain, in particular, the second of these principles, so as to reveal its role in that argument and in the conception of an appetite and of the appetitive part that is central to the larger argument of the Republic as a whole. Section 1 briefly introduces the principle of opposition, analyzes the principle of qualification, and presents the argument for tripartition. Section 2 uses the analysis of the principle of qualification to interpret a claim Socrates makes about the soul and its relation to the good, which seems at odds with the account of appetites uncovered in Sect. 1. Then, in Sect. 3, the relevance of the principle of qualification to Socratic intellectualism—the view that knowledge is sufficient for virtue—is explored. In Sect. 4, appetites are returned to with the focus now on the varieties of them that Socrates recognizes. In Sect. 5, a view is put forward about the nature of the appetitive part (Appetite), its beliefs, and its ability to be persuaded by the rational part (Reason). In Sect. 6, it is argued that Appetite and Reason are both souls, capable of working in harmony, but also of being opposed, thereby underwriting an important part of the analogy between the polis and the soul on which much of the Republic relies.