The famous dialogue "On Justice," the blueprint for organizing the ideal community of law and education, the exposition of the political and ethical principles of the philosopher.

Books I-V: Introduction to the dialogue, examination of the concept of justice according to the prevailing views of the time. The creation of the state. The character of the state as a community of law and education. Elements of its organization and persona.

Paralleling the city with the soul. The internal character of the state. The equality of the two sexes. Communal ownership of women and children.