The three classes in Socrates “ideal city are the Producers, Auxiliaries and Guardians. Producers are the producing class and make up the largest class of society; this group includes all professions other than warrior and ruler. This group includes famers, craftsmen, merchants, doctors, artists, actors, lawyers, judges, and so forth. According to Socrates, in his ideal city the producers have no share in ruling, but simply obey the rules set by the rulers. Their focus is exclusively on producing whatever it is that they are best suited to produce such as agriculture, shoes, carpentry or medicine etc.
The Auxiliaries are the warrior class who are responsible for defending the city from invaders and for keeping the peace at home. Auxiliaries are also responsible for enforcing the convictions or rules of the guardians.
The Guardians are the ruling class within Socrates ideal city and are solely responsible for ruling and setting the rules for the city. Guardians chosen from among the ranks of the auxiliaries, and are also known as philosopher-kings.