AP Syllabus focus:
'Locke and Rousseau developed political models based on natural rights, consent of the governed, and the social contract.'
Enlightenment political thought transformed debates about authority by arguing that legitimate government rests on human nature, rights, and agreement rather than tradition alone. John Locke and Jean-Jacques Rousseau offered especially influential models.
This painted portrait of John Locke (by Godfrey Kneller) provides a period visual reference for one of the central Enlightenment theorists of natural rights and limited government. Using an authentic contemporary-style image helps connect the abstract concepts in the notes to the historical individuals who popularized them. Source
Core Political Ideas
The Enlightenment encouraged Europeans to ask where political authority came from and what made obedience legitimate. Locke and Rousseau answered by treating government as a human arrangement, not a divine or inherited fact.
Natural Rights
Natural rights stood at the center of Enlightenment political thought, especially for Locke.
Natural rights: Rights people possess by nature rather than by grant from a ruler or government.
For Locke, these rights existed before government. He most famously emphasized life, liberty, and property. Because rights were natural, a ruler could not legitimately take them away at will. Government existed to secure them more effectively than individuals could on their own. This idea challenged older assumptions that monarchs were the ultimate source of law and privilege.
Political legitimacy also depended on how power was created and exercised.
Consent of the Governed
Both thinkers argued that authority required consent of the governed, though they defined that consent differently.
Consent of the governed: The principle that political power is legitimate only when it is accepted by the people who live under it.
This principle weakened the case for absolute monarchy. If authority came from consent, rule based only on conquest, divine right, or tradition was no longer enough. Consent made government a trust or agreement rather than a permanent possession of a dynasty.
A broader framework for this argument was the social contract.
Social Contract
Both Locke and Rousseau used the idea of a social contract to explain why governments exist and what obligations bind rulers and subjects.
Social contract: A theoretical agreement in which people create political authority in order to protect rights, secure order, or pursue the common good.
The contract was not mainly a written document. It was a philosophical model for explaining why people would leave a more natural condition and enter civil society. Even though Locke and Rousseau shared this language, they imagined the contract leading to very different political systems.
Locke's Political Model
Rights, Limited Government, and Trust
John Locke argued that people are naturally free and equal. In a state of nature they possess rights, but those rights are insecure because there is no neutral authority to enforce them consistently. People therefore form governments by consent. The purpose of government is limited: it must defend natural rights rather than direct every part of life.
Locke's model favored constitutional government, regular law, and restraint on power. Political institutions were legitimate only if they protected liberty and property. Because government was created for a purpose, it could be judged by results. A state that violated rights had failed in its most basic duty.
Resistance to Tyranny
Locke's theory contained a powerful justification for opposition. If rulers broke the trust placed in them, governed without consent, or attacked the rights they were supposed to protect, the people had the right to alter or abolish that government. This did not mean constant rebellion. It meant that sovereignty ultimately rested with the community, not permanently with the ruler. Locke therefore provided a political language for limiting authority and defending resistance to tyranny.
Rousseau's Political Model
This portrait of Jean-Jacques Rousseau (by Maurice Quentin de La Tour) is a widely reproduced eighteenth-century likeness of the philosopher most associated with popular sovereignty and the general will. Placing the image at the start of the Rousseau section helps students distinguish Rousseau’s community-centered model from Locke’s rights-centered one. Source
Freedom and Popular Sovereignty
Jean-Jacques Rousseau agreed that legitimate authority could not rest on mere force, but he worried more than Locke about inequality and dependence. For Rousseau, true freedom did not simply mean protection from interference. It meant living under laws that citizens gave themselves collectively.
His political theory centered on the people as the source of sovereignty.
General will: The collective interest of the political community, which Rousseau believed legitimate laws should express.
Rousseau argued that a valid social contract created a moral and political community. Citizens obeyed the law, but because they participated in forming it, they were also obeying themselves as members of the whole. In this sense, political obedience and liberty could be reconciled.
Consent and the Common Good
Rousseau's idea of consent was more demanding than Locke's. Locke focused on protecting preexisting individual rights through limited government. Rousseau emphasized active membership in a community oriented toward the common good. He was less satisfied with a system in which citizens simply accepted rulers and then stepped back from politics. For him, legitimate authority required continuing participation and civic commitment so that law reflected the general will rather than private interests alone.
Comparing Locke and Rousseau
Shared Foundations
Both grounded political legitimacy in human agreement rather than divine right.
Both made consent essential to rightful rule.
Both used the social contract to explain why government should exist.
Major Differences
Locke stressed the protection of individual natural rights; Rousseau stressed the collective exercise of sovereignty.
Locke accepted a stronger place for property and limited constitutional government; Rousseau was more concerned that inequality could distort freedom and consent.
Locke emphasized the right to resist a government that broke trust; Rousseau emphasized creating a political order in which citizens remained authors of the law.
Historical Significance
The importance of these ideas was enormous because they changed the standard for evaluating government. Rule was no longer judged legitimate simply because it was old, hereditary, or powerful. Instead, Enlightenment political thought asked whether authority protected rights, rested on consent, and reflected a valid social contract.
This illustrated page of the 1789 French Declaration of the Rights of Man and of the Citizen shows Enlightenment principles presented as formal political claims. The iconography and structured articles visually emphasize the shift from tradition-based authority to legitimacy grounded in rights and the political nation. Source
In that shift, Locke and Rousseau helped redefine the relationship between the individual, the people, and the state.
FAQ
Usually not. For most Enlightenment writers, the social contract was a thought experiment rather than a literal account of how states first appeared.
Its purpose was to test legitimacy: if rational people would not agree to a form of rule, that rule lacked moral authority. The idea mattered less as history and more as political philosophy.
Rousseau believed sovereignty belonged to the people collectively and could not simply be handed over to elected officials. He feared representatives might defend private interests instead of the common good.
Locke was more comfortable with representation because he focused on limiting power and protecting rights. Rousseau wanted citizens to play a more direct role in making the laws they obeyed.
Governments and church authorities sometimes condemned, banned, or monitored political works that challenged established authority. That made official publication risky.
Yet censorship did not stop circulation. Ideas often spread through pirated editions, foreign presses, private libraries, and manuscript copies. Suppression could even increase curiosity and prestige.
Locke treated property as a natural right and argued that government should not tax or interfere arbitrarily. That made his thought attractive to people who wanted legal security for land, trade, and investment.
His model promised limited government rather than social levelling. For many elites, it offered reform and restraint without overturning the social order completely.
Rousseau meant that a citizen might resist a law out of private interest even when that law reflected the general will. In such a case, obedience could restore membership in a genuinely free political community.
The phrase has always been controversial. Supporters saw it as a defence of civic liberty; critics saw a danger that rulers could claim to know the common good and use coercion in its name.
Practice Questions
Identify one principle in Locke's political model and one principle in Rousseau's political model concerning legitimate government. (2 marks)
1 mark for identifying Locke's view that legitimate government protects natural rights and rests on consent.
1 mark for identifying Rousseau's view that legitimate government is based on the social contract and the sovereignty of the people or common good.
Evaluate the extent to which Locke and Rousseau offered similar views of the relationship between liberty and government. (5 marks)
1 mark for a defensible thesis that addresses similarity and/or difference.
1 mark for explaining Locke's view that government exists to protect life, liberty, and property through consent and limited power.
1 mark for explaining Rousseau's view that freedom comes from obeying laws made by the sovereign people under the social contract.
1 mark for a clear comparison of one major similarity or difference between the two thinkers.
1 mark for analysis showing how their ideas challenged traditional political authority or redefined legitimacy.
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