Persia serves Jean-Jacques Rousseau as both an example in political economy and a setting for an ideal of princely education. Its grain levies suggest that collecting taxes in kind might interrupt the damaging flow of money away from rural producers, while the education of Cyrus presents justice as a lesson that must take precedence over mere convenience.

Taxation and the Circulation of Grain

Rousseau considers whether Persia’s royal dues on commodities, paid in kind, could avert the damage caused when industry and commerce draw money from the countryside into the capitals. He notes that the practice was not merely contemporary: citing Herodotus, he says it had prevailed in Persia down to the time of Darius. In principle, receiving produce rather than money might prevent the husbandman from being left with less payment as his fixed tax burden continued to exhaust him.

That possible remedy is sharply qualified. Rousseau doubts that the grain would reach the king intact or that the state’s agents would preserve it. He imagines it spoiling in granaries and warehouses, or being consumed by fire, and questions whether Persia’s intendants, directors, commissioners, and warehousemen differ from officials elsewhere. The example therefore does not establish that payment in kind works; it exposes the administrative risks that accompany a proposed solution.

The Rural Cost of Land Taxes

The Persian example belongs to Rousseau’s wider account of how excessive taxes on land or corn impoverish a country. Money flows toward cities, where the tax proceeds pass from the prince or financial officers to artists and traders, while the farmer receives only a small share. The result is an imbalanced circulation: the city grows richer as the countryside grows poorer, and the husbandman pays the same tax while receiving less in return.

A second harm is less visible because the tax does not necessarily raise the price of corn in the producing country. Its quantity may fall without its price rising, so people can starve while grain remains cheap. The farmer cannot pass the burden on as a merchant might pass on duties through higher prices: rent and taxes fall due at stated times whether or not the crop sells, forcing the farmer to sell even when the price is low. Persia’s in-kind dues are raised against this account as a possible intervention, but Rousseau’s doubts about storage and officials leave the practical problem unresolved.

The Education of the Heir

Persia also figures in a discussion of how a ruler should be formed. Drawing on Montaigne’s report of what Plato relates, Rousseau describes the upbringing of the Persian heir to the throne. At birth, the child is entrusted not to women but to high-ranking eunuchs close to the king, chosen for their virtue; they are charged with making his body beautiful and healthy. At seven he learns to ride and hunt.

At fourteen, four of the wisest, most just, most temperate, and bravest people in the kingdom take charge of him. One teaches religion, another adherence to truth, a third mastery of the passions, and the fourth fearlessness. Rousseau adds that all four teach him to be a good man, while none teaches him to be learned. The passage thus measures royal education by the moral qualities and self-command it cultivates, not by scholarly instruction.

Cyrus’s Lesson in Justice

A story from Xenophon makes that educational ideal concrete. Astyages asks Cyrus to recount his latest lesson. Cyrus tells of a school dispute in which a bigger boy, whose coat was too small, exchanged it for the larger coat of a smaller boy. Appointed to judge, Cyrus ruled that the arrangement should stand because each boy seemed better suited to his new coat.

The master corrects him: Cyrus had considered convenience, but justice must come first, and justice forbids forcible interference with what belongs to another. Cyrus says he was punished for the decision, as schoolboys are punished for forgetting the first aorist of the Greek verb τύπτω. Rousseau turns the anecdote into a pointed comparison with contemporary tutors: a fine rhetorical display would not persuade him that their schooling was as good as this lesson in respecting another person’s property. Persia’s educational example, unlike the uncertain tax remedy, ends with a clear standard: good government begins with learning to judge justly.