Socrates completes the description of the kallipolis and philosopher-king, returning to the argument from Book V.
He describes four individual character types and corresponding constitutions, seen as stages of decline from the kallipolis (544d-545d).
The decline is attributed to philosopher-kings relying on sense perception in eugenics (546b-c).
Four Types of Cities
Timocracy: Ruled by people governed by the spirited part of their soul, valuing honor and reputation (550b).
Second best to Kallipolis.
Oligarchy: Ruled by people governed by necessary appetites (554a).
Democracy: Ruled by people governed by unnecessary appetites (561a-b).
Tyranny: Ruled by someone governed by lawless, unnecessary appetites (571a).
Conditions for Good Governance
Wives, children, and education must be in common.
Life in peace or war must be in common.
Kings must be best in philosophy and warfare.
Rulers lead soldiers and live in common dwellings.
They receive yearly upkeep from citizens as a wage (543).
Types of Constitution
Cretan/Laconian: Praised constitution (544c).
Oligarchy: Filled with evils.
Democracy: Antagonistic to oligarchy.
Tyranny: Surpassing all, the last diseased city.
Constitutions arise from the characters of people in the cities (544d-e).
Five Forms of City and Soul
Five forms of city correspond to five forms of the individual soul (545).
Aristocracy is good and just.
Inferior ones: victory-loving, honor-loving, oligarchic, democratic, and tyrannical.
Goal: to discover the most unjust and compare to the most just, examining happiness/wretchedness (545a).
Timocracy
Cause of change in any constitution is civil war within the ruling group.
All things come into being must decay (545d-546a).
Rulers will fail to recognize the fertility and barrenness of the human species, begetting children at the wrong time (546a-b).
The intermixing of iron with silver and bronze with gold engenders lack of likeness and unharmonious inequality, breeding war/hostility (546e-547a).
Compromise on a middle way: distribute land/houses as private property, enslave those previously guarded, focus on war (547b-c).
Constitution imitates aristocracy and oligarchy.
Timocratic Man
Obstinate, less trained in music/poetry, loves speeches but not a rhetorician (548e).
Harsh to slaves, gentle to free people, obedient to rulers, loves ruling/honor (548e-549a).
Claims to rule based on warfare abilities, not speaking ability (549a).
Despises money when young, loves it more as he grows older (549a).
Lacks reason mixed with music/poetry as a lifelong preserver of virtue (549b).
Oligarchy
Based on property: the rich rule, and the poor have no share (550c-d).
The treasure house filled with gold destroys the constitution (550d).
Virtue and wealth are opposed (550e-551a).
Faults: Not one city but two (poor and rich), oligarchs unable to fight wars, same people are farmers, money-makers, and soldiers simultaneously (551d-552a).
Admits the greatest of all evils: Allowing someone to sell all his possessions but still live in a city (552a).
City full of beggars results in thieves, pickpockets, and evildoers (552d).
Oligarchic Man
Timocrat's son sees his father crashing against the city, losing possessions (553a-b).
Driven from the throne in his own soul the honor-loving and spirited part that ruled there, humbled by poverty, he turns greedily to making money(553b).
Establishes appetitive and money-making part on the throne, reducing the rational and spirited parts to slaves (553c-d).
A thrifty worker satisfies only necessary appetites (554a).
Lacks education and has dronish appetites forcibly held in check (554b-c).
Democracy
Changed from an oligarchy because of it's insatiable desire to become as rich as possible (555a-b).
Impossible for a city to honor wealth and at the same time for its citizens to acquire moderation (555c-d).
The poor are victorious, giving an equal share in ruling under the constitution and by assigning people to positions of rule by lot (556e-557a).
Constitutions characteristics: They are free, and the city is full of freedom and freedom of speech (557b).
Democratic Man
The Son of that thrifty oligarch rules his spendthrift pleasures by force (558d).
The transformation from having an oligarchic constitution in him to having a democratic one when he tastes the honey of the drones (559d-e).
Spends as much money, effort, and time on unnecessary pleasures as on necessary ones (561a).
Lives, always surrendering rule over himself to whichever desire comes along (561b-c).
Tyranny
Evolves from democracy, due to insatiable desire for freedom (562a-c).
Democratic city gets bad cupbearers for its leaders and gets drunk by drinking more than it should of the unmixed wine of freedom(562d).
The disease that developed in oligarchy also develops here, but it is more widespread and virulent because of the general permissiveness, and it eventually enslaves democracy (563e-564a).
Extreme freedom can’t be expected to lead to anything but a change to extreme slavery (564a).