Book 3
1.82
There are five forms of civil government: one form is democratic, another aristocratic, a third oligarchic, a fourth monarchic, a fifth that of a tyrant. The democratic form is that in which the people has control and chooses at its own pleasure both magistrates and laws. The aristocratic form is that in which the rulers are neither the rich nor the poor nor the nobles, but the state is under the guidance of the best. Oligarchy is that form in which there is a property-qualification for the holding of office; for the rich are fewer than the poor. Monarchy is either regulated by law or hereditary. At Carthage the kingship is regulated by law, the office being put up for sale.Plato probably refers to Carthage when he mentions purchasable kingship, ὠνηταὶ βασιλεῖαι, amongst barbarians, Rep. 544 d. Aristotle repeats the epithet in his description of the Carthaginian constitution, Pol. ii. 11, 1273 a 36. Polybius says that at Carthage magistrates attain office, δῶρα φανερῶς διδόντες, vi. 56. 4. This phrase is some help towards an explanation, but whether it means open bribery —possibly of the people, more probably of the Council— or whether it refers to very large fees payable upon taking office, it is not easy to determine. In either case wealth would preponderate over merit.
1.83
But the monarchy in Lacedaemon and in Macedonia is hereditary, for they select the king from a certain family. A tyranny is that form in which the citizens are ruled either through fraud or force by an individual. Thus civil government is either democratic, aristocratic, oligarchic, or a monarchy or a tyranny.