Political philosophy and the social contract

Governments make laws, collect taxes and can use force. Political philosophy asks what could justify that power. Why should anyone obey the state, and what are the limits of its authority?

Ancient answers often pointed to tradition, divine will or the natural order. Aristotle described humans as political animals who can only fully flourish within a community. In early modern Europe, a new answer became influential: legitimate government rests on the consent of the governed.

Thomas Hobbes wrote Leviathan in 1651, shaped by the English Civil War. He imagined a state of nature without government, where people were roughly equal and competed for scarce resources. Life there, he wrote, would be solitary, poor, nasty, brutish and short.

To escape, rational people would agree to hand power to a sovereign strong enough to keep peace. For Hobbes, almost any government was better than anarchy, so subjects had very limited rights to resist, except to preserve their own lives.

John Locke, writing later in the seventeenth century, painted a milder state of nature. People already had natural rights to life, liberty and property, but lacked impartial judges to settle disputes. They formed governments to protect those rights.

Because government exists to protect rights, Locke argued, a government that violates them breaks its trust, and the people may resist and replace it. His ideas influenced the Glorious Revolution in England and the American Declaration of Independence, which speaks of unalienable rights and governments deriving their powers from the consent of the governed.

Jean-Jacques Rousseau's The Social Contract of 1762 begins with a famous line: man is born free, and everywhere he is in chains. He argued that society had corrupted natural human goodness and created inequality.

Rousseau's solution was a community in which citizens together create laws expressing the general will, the common good rather than private interests. By obeying laws they make themselves, citizens remain free. His ideas inspired French revolutionaries and democratic thinkers, though critics warn that claims to speak for the general will can be used to justify suppressing dissent.

• John Stuart Mill's harm principle: society may restrict a person's liberty only to prevent harm to others.
• Karl Marx argued that the state served the interests of the ruling economic class and predicted a society without classes.
• Isaiah Berlin distinguished negative liberty, freedom from interference, from positive liberty, the capacity to act on one's own goals.
• John Rawls proposed choosing principles of justice behind a veil of ignorance, without knowing one's own place in society.
• Robert Nozick defended a minimal state limited to protecting individuals and enforcing contracts.

Modern political debates echo these arguments. How much should governments redistribute wealth? When may free speech be limited? What do citizens owe to strangers in other countries or to future generations? How should democracies protect minorities from majorities?

Critics of classical social contract theory have also pointed out whose consent was assumed. Philosophers such as Carole Pateman and Charles Mills argued that historical contracts excluded women and non-white people, and that political theory must account for those exclusions.