Abstract
An interpretation is offered of thrasymachus' account of the nature of justice and just action in book I of the 'republic' which is internally consistent throughout on all important points. Just action is not defined in terms of its practical consequences, As many commentators assume, But rather in terms of its logical consequences 'vis-A-Vis' just agents. When one man acts justly towards another, The performance of the just act renders the just agent vulnerable to unfair or unjust exploitation by those with whom he deals. The "strong man", In thrasymachus' sense, Would thus never be a just man. It is argued that socrates addresses himself to this position, But that, While the textual thrasymachus is silenced, Socrates' best arguments are, In fact, Inadequate to refute thrasymachus