On Justice
This brief anonymous dialogue asks whether just and unjust action can be distinguished by a reliable capacity. Its chain of comparisons with sight, hearing and skilled activities tries to move from familiar examples toward an account of moral knowledge.
Understanding the text
Transmitted among the Platonic spuria, the text is not accepted as Plato’s work. Its compact interrogation illustrates how later writers reused a recognizable Socratic manner.
Key points
- 01
A shared criterion
Knowing particular just actions requires asking what enables their recognition across different situations rather than merely repeating approved examples.
- 02
Knowledge and error
Comparisons with crafts suggest that mistaken conduct may reflect ignorance, but transferring this pattern to morality requires further justification.
- 03
Voluntary wrongdoing
If everyone seeks what they take to be good, the relation between deliberate choice and injustice becomes harder to formulate.
How to read it
Read as a short exercise in argument, not an authenticated transcript of Socrates. Identify where an analogy supplies evidence and where it merely assumes the moral conclusion it is meant to establish.
Editions & sources
Summaries and key points are original editorial interpretations. They accompany reading the work and do not replace an edition of the text. Editorial method ↗