In defending the view that justice is the advantage of the stronger, Thrasymachus puzzlingly claims that rulers never err and that any practitioner of a skill or expertise (τέχνη) is infallible. In what follows, Socrates offers a number of arguments directed against Thrasymachus’ views concerning the nature of skill, ruling, and justice. Commentators typically take a dim view of both Thrasymachus’ claims about skill (which are dismissed as an ungrounded and purely ad hoc response to Socrates’ initial criticisms) and Socrates’ (...) latter arguments (which are deemed extremely weak). In this paper, I clarify Thrasymachus’ views (and those of several other ancients) concerning qua locutions and the nature of skill and ability and I reconstruct Socrates’ arguments against Thrasymachus’ views concerning skill and justice. I argue that Thrasymachus’ views are not ungrounded or ad hoc and that Socrates’ arguments are rather different (and significantly stronger) than often supposed. (shrink)

Platonic arguments often have premises of a particular form which is misunderstood. These sentences look like universal generalizations, but in fact involve an implicit qua phrase which makes them a fundamentally different kind of predication. Such general implicit redoubled qua predications (girqps) are not an expression of Plato's proprietary views; they are also very common in everyday discourse. Seeing how they work in Plato can help us to understand them.

In Republic 1, Thrasymachus makes the radical claim that being just is ‘high-minded simplicity’ and being unjust is ‘good judgment’ (348c–e). Because injustice involves benefiting oneself, while justice involves benefiting others, the unjust are wise and good and the just are foolish and bad (348d–e). The “greedy craftsperson” argument (1.349b–350c) attempts to show that the unjust person's desire to outdo or have more than ( pleon echein) everyone is a symptom of her ignorance. Many commentaries have found the argument problematic (...) and unclear. However, this paper argues that the greedy craftsperson argument defends plausible constraints on the nature of justice and wisdom. (shrink)

This article offers an interpretation of Thrasymachus’ Inmoralism, that is to say, of the set of judgements concerning the superior value of injustice in comparison with justice, issued by him in book I of Plato’s Republic. It is argued that both the argument in support of these judgements and its implicit resource to the concept of πλεονεξία cannot be interpreted descriptively, if they are to serve to justify the immoralists judgements. It is also argued that a particularly important subgroup of (...) such judgements is supported by a peculiar conception of practical reason based on the concept of πλεονεξία. Finally, the comparison is made between this ‘pleonexic’ conception of practical rationality and the one that Plato advocates in the Republic. (shrink)

Philippa Foot, like others of her philosophical generation, was much concerned with the status and authority of morality. How universal are its demands, and how dependent on the idiosyncrasies of individuals? In the early years of her career, she was persuaded that Kant and his twentieth-century followers had been wrong to insist on the centrality to morality of absolute and unconditionally binding moral imperatives. To that extent, she wrote, there was indeed ‘an element of deception in the official line about (...) morality’. In this paper, I shall explore her early alternative: a system of merely ‘hypothetical’ imperatives, imperatives that depend on the motivations of particular individuals. Could so contingent a system deserve to be termed a morality? How revisionary a proposal was this, and how serious its costs? And how might we reconcile ourselves to a morality stripped of what she called the ‘fictions’ that surrounded it? Foot's early answer, tentative and exploratory, remains of interest, long after she herself abandoned it. (shrink)