Thomas Paine begins his work by examining the fundamental difference between society and government. He argues that human beings naturally form cooperative societies through mutual needs and social affections, rendering most formal government unnecessary. Civilisation thrives on trade and cooperation, whereas traditional governments generate artificial divisions, constant wars, and oppressive taxation for their own aggrandizement.
Transitioning to the origin of states, Paine asserts that ancient monarchies began through violence, conquest, and robbery by bands of ruffians whose leaders eventually assumed the title of monarchs. Over time, these violent usurpations were disguised as legitimate revenue systems and hereditary rights, perpetuating a cycle of military conflict and public exploitation.
The core of Paine's argument contrasts the old hereditary system with the new representative model of government. Hereditary succession is condemned as an absurd imposition that reduces mankind to heritable property, placing the governance of nations at the mercy of chance, ignorance, and occasional tyranny. A representative government, by contrast, is rooted in reason and democracy, collecting wisdom from the entire population to serve the public interest.
Paine defends the French Revolution against the hostile attacks of Edmund Burke. He clarifies that the French revolt was directed against centuries of entrenched hereditary despotism rather than the personal character of Louis XVI. The revolution aimed to dismantle the thousand minor despotisms of the church, the feudal system, and privileged orders, replacing them with a constitution based on human rights.
A central theme of the text is the illegitimacy of dead generations binding the living. Paine rejects Burke's reliance on historical precedents and parliamentary clauses from past centuries, asserting that every age must be entirely free to act for itself. Man has no property in man, and no past parliament possesses the authority to dictate how future generations shall be governed.
Moving to specific institutional reforms, Paine details the improvements established by the French Constitution, such as proportional representation, the abolition of titles and primogeniture, and the separation of church and state. He argues that titles are childish nicknames that degrade human dignity, while state-established religions foster intolerance and poverty by creating a corrupt union between political power and spiritual authority.
Finally, Paine addresses the economic burden of monarchies, comparing the exorbitant costs of European courts with the economical administration of the American republic. He contends that excessive taxation and public debt are inevitable outcomes of the old military systems of government. The work concludes with the optimistic vision that reason and universal representation will eventually replace the archaic structures of hereditary power across Europe.