Lysander Spooner

Lysander Spooner (1808–1887) was an American political philosopher, legal theorist, and abolitionist. A self-taught lawyer, he famously challenged the U.S. postal monopoly with his American Letter Mail Company. Spooner's literary legacy rests on his extensive writings on natural law, individual sovereignty, and the illegitimacy of the state. His most famous work, "No Treason" (1867–1870), argues that the U.S. Constitution is a contract that never bound individuals, and that secession is a natural right. Other significant works include "The Unconstitutionality of Slavery" (1845), which argued that slavery was invalid under the Constitution, and "Trial by Jury" (1852). Spooner's ideas influenced later libertarian and anarchist thought, though he remained a marginal figure in his own time. His writings continue to be studied for their rigorous application of natural rights theory to political institutions.