Rights of Man was written in two parts as a direct reply to Edmund Burke's Reflections on the Revolution in France. Burke had argued that the English settlement of 1688 bound all future generations by its terms, and that the ancient constitution of England was a sacred inheritance. Paine sets out to demolish this position systematically, beginning with the claim that no parliament or generation of men possesses the right to govern posterity forever.
The philosophical core of Part One is the distinction between natural and civil rights. Natural rights are those which belong to a person in right of existence: freedom of thought, conscience, and action that injures no one else. Civil rights are natural rights exchanged into a common stock when individuals enter society, so that the collective power can protect what no individual alone can defend. Every civil right therefore grows out of a natural right, and the aggregate power of society cannot be turned against the natural rights that individuals retain.
Part One also engages directly with the events of the French Revolution. Paine describes the taking of the Bastille with sympathy and precision, counters Burke's account of the National Assembly, and argues that the Revolution was directed not at the person of Louis XVI but at despotic principles embedded in the structure of the old government. He traces the natural and equal rights of man to creation itself, arguing that if any authority on the question exists, it is the moment when all human beings were made equal, not the musty parchments of intervening centuries.
Part Two, published in 1792, extends the argument from principle to practice. Paine contrasts representative government, grounded in the original rights of man, with hereditary government, which he traces to conquest and violence. He examines how the American constitutions were actually formed, by conventions of delegates, publicly debated, then ratified by the people, and argues this process demonstrates that constitutions are antecedent to governments, not their product. He also addresses taxation, proposing progressive measures to relieve the poor, and develops the view that monarchical government's appetite for war is itself the chief cause of the poverty and discontent that governments then use to justify their own power.
Throughout both parts, Paine's rhetoric is deliberate and demystifying. He insists that government is nothing more than a national association acting on the principles of society, that its mysteries are manufactured to keep people ignorant and compliant, and that once the principles of representative government are understood, the case for hereditary power collapses. His aim is less to celebrate any single revolution than to establish that the rights of man are universal, imprescriptible, and belong to the living, not to the dead, and not to the powerful.