Slavery

In Rousseau's account, slavery is not a valid contract or a natural human condition but a contradiction: force can compel obedience, yet it cannot create a right to command. A person or people cannot legitimately surrender the freedom on which human agency, moral responsibility, and political association depend. By challenging arguments from consent, paternal authority, and conquest in turn, Rousseau makes slavery a test case for the foundations of legitimate authority—and shows why a population held by force is not thereby a political community.

Definition and the force-right distinction

Rousseau begins from a principle of political legitimacy: no person has natural authority over another, and force creates no right. Legitimate authority must therefore rest on conventions. Slavery cannot supply that basis simply because submission has occurred; the fact of being overpowered describes a relation of force, not a rightful obligation.

This distinction also overturns the claim that slavery is natural. Rousseau concedes that a person born into slavery may become conditioned to it, even to the point of losing the desire to escape. But that adaptation is an effect of enslavement, not evidence that some people are born to be slaves. The causal sequence runs in the opposite direction from the one used to defend natural hierarchy: force makes the first slaves, and the condition imposed on them helps perpetuate their subjection.

Consent cannot make enslavement legitimate

Rousseau examines the claim that, if an individual can alienate his liberty and become another person's slave, a whole people can likewise place itself under a king. He challenges the word alienate: a person who sells himself might at least be said to receive subsistence in return, but a king lives from the resources of his subjects rather than providing their livelihood. If the people surrender both their persons and their goods, the supposed exchange leaves them with nothing to preserve.

Nor does the promise of civil tranquillity make submission a fair bargain. A ruler's wars, appetite, and ministers' abuses may burden subjects more heavily than the conflicts they would otherwise face. Quiet alone does not prove that a political condition is desirable: confinement may be peaceful while remaining misery. The argument therefore tests authority by the relation it establishes and the terms exchanged, not by the mere absence of open disorder.

The idea of a free, gratuitous surrender fails even more directly. Rousseau treats such an act as incoherent: a person who gives away everything has no compensation, and the purported act cannot create an obligation. Applied to an entire people, the claim depends on imagining collective madness; irrationality does not make a right. A convention wholly at one party's expense cannot transform absolute authority and unlimited obedience into a valid reciprocal arrangement.

Liberty, children, and moral agency

Rousseau's case does not end with the consent of the current generation. Even if an individual could dispose of himself, he could not dispose irrevocably of his children. They are born free, and their liberty belongs to them. Before they can judge for themselves, a parent may set conditions for their preservation and well-being, but cannot surrender them unconditionally and forever.

That limit has a political consequence: arbitrary rule would need to be accepted or rejected anew by each generation to claim legitimacy. If a people retains that choice, however, its government is no longer arbitrary. Inheritance cannot turn a past submission into an unending title over people who never made it.

Liberty is also inseparable from moral agency. To renounce it is to renounce not only human rights but human duties, because removing freedom from the will removes the moral character of action. The relation of absolute command to unlimited obedience is contradictory: if the master has a right to everything the slave possesses, the slave has no independent right to claim against him. What is presented as a binding right thus collapses into a claim a person makes against himself.

Conquest, life, and the absence of a treaty

Rousseau also rejects the attempt to derive slavery from war. The claim that a victor may kill the defeated and that the defeated may purchase life with liberty depends on a right to kill that he denies. The right of conquest rests only on the right of the strongest; if war provides no right to massacre a conquered people, it cannot provide a right to enslave them. Making liberty the price of life is an unfair exchange when the victor has no rightful claim to that life in the first place.

The alleged justification is circular: the right to take life is defended through a right to enslave, while that right to enslave is defended through the right to take life. Even under the imagined premise that a victor could kill everyone, the survivor's obedience would be owed only to the extent that force compelled it. Taking an equivalent for a life does not make the victor a benefactor, and it gives him no authority beyond force.

For that reason, a coerced agreement after defeat does not end the warlike relation. It presupposes that relation and leaves it in place; it is not a peace treaty that turns compulsion into legitimate rule. Rousseau's conclusion is categorical: the supposed right of slavery is not merely illegitimate but meaningless. The words slave and right contradict one another, because a convention wholly at one party's expense and enforced only at the stronger party's pleasure cannot bind the other as a right.

Political significance

Slavery also clarifies what political society is not. Subduing a multitude and governing a society are different acts. Even if one person successively enslaved a vast number of individuals, their subjection would produce a master and slaves, not a people and its ruler. It would be an aggregation rather than an association, with no common good or political body.

The distinction links Rousseau's rejection of slavery to his wider account of legitimate authority. A ruler cannot turn power into right merely by extending control over many people, and a population's continuing obedience cannot by itself establish that it owes obedience. The decisive issue is whether relations among people rest on a valid convention that preserves their standing as free agents. Where liberty has been wholly surrendered and no reciprocal obligation remains, force may persist, but legitimate political community has not been made.