Cambyses' conquest of Egypt is presented by Jean-Jacques Rousseau as the first episode in a sequence of conquests illustrating his claim that the advance of arts and sciences is accompanied by moral decline and political subjection. Egypt's passage from celebrated cradle of learning to conquered country makes the episode evidence in a broad, cyclical account of civilization and loss.

Egypt as a Cradle of Learning

Rousseau introduces Egypt as the first school of mankind, an ancient country renowned for its fertility beneath a brazen sky. Its earlier greatness is also associated with Sesostris, who set out from Egypt to conquer the world. The country thus appears not merely as a place eventually overcome, but as a former center of power and human achievement.

Egypt later became the mother of philosophy and the fine arts. In Rousseau's account, that cultural distinction precedes the country's subjection: the rise of learning is followed by conquest, rather than preserving Egypt's independence. The contrast supplies the historical pattern on which his argument depends.

Conquest and Successive Subjection

Cambyses conquered Egypt, initiating the sequence of foreign dominations Rousseau names. After Cambyses, the country was conquered in turn by the Greeks, the Romans, the Arabs, and finally the Turks. The brief catalogue moves from one ruling power to another, making Egypt's loss of political independence appear cumulative and recurrent.

The passage does not describe the military campaign, its date, the participants' motives, or the immediate terms of Egyptian surrender. Its focus is the place of the conquest in a historical sequence: Egypt's cultural eminence did not prevent it from being conquered, and Cambyses' victory marks the opening of a long succession of foreign rule.

Role in Rousseau's Argument

The episode belongs to Rousseau's rebuttal of the idea that the corruption he observes is peculiar to his own age. He argues that the evils associated with vain curiosity are as old as the world, and compares the regular influence of the arts and sciences on a people's morals to the tides' relation to the moon. As their light rises, he says, virtue takes flight; Egypt gives this claim an ancient historical example.

The conquest is therefore not narrated as a self-contained battle or as a story of individual actors. Its significance lies in the contrast between Egypt's status as a source of philosophy and the fine arts and its subsequent history of conquest. In Rousseau's larger indictment, cultural advancement offers no guarantee of civic strength: the country that helped originate learning becomes the first example in a chain of learned civilizations losing their freedom.