1588-1679 CE
Life in the state of nature is solitary, poor, nasty, brutish, and short. Only absolute sovereign power can save us from the war of all against all.
Born in 1588 at Westport, near Malmesbury, Wiltshire, prematurely when his mother heard the Spanish Armada threatened England. His father, a vicar, brawled with another clergyman and fled, leaving the family. His uncle supported Thomas’s education. He excelled at languages, entering Oxford at fourteen, studying scholastic philosophy (which he later despised as meaningless jargon).
After graduating in 1608, he became tutor to William Cavendish, later Earl of Devonshire. This position gave him access to aristocratic circles and European travel. On his Grand Tour he met Galileo and absorbed the new mechanical philosophy. He discovered Euclid’s Elements at age forty and became obsessed with geometric demonstration, believing all philosophy could achieve similar certainty.
The 1640s English Civil War shaped his thought profoundly. Watching religious and political factions tear England apart convinced him that only absolute sovereign power could prevent chaos. In 1640, fearing Parliament’s growing power, he fled to Paris, joining royalist exiles. There he tutored the future Charles II and wrote Leviathan (1651), his masterwork, arguing for absolute sovereignty based on social contract.
Leviathan satisfied nobody. Royalists hated his suggestion that sovereign power came from people’s consent, not divine right. Republicans hated his absolutism. Everyone suspected his materialism was atheism disguised. He returned to England in 1651, submitted to Commonwealth government (enraging royalists), then welcomed the Restoration in 1660 (enraging republicans). Charles II gave him a pension but couldn’t protect him from Parliament, which periodically tried to ban his books.
His final decades were spent in comfortable semi-retirement at Hardwick Hall with the Cavendish family. He wrote controversies defending his views, pursued mathematical interests (unsuccessfully claiming to square the circle), and translated Homer into English for pleasure. He died in 1679 at ninety-one, having survived most enemies and witnessed England’s transformation from medieval to modern political order.
""The condition of man... is a condition of war of everyone against everyone, in which case everyone is governed by his own reason.""
— Hobbes's state of nature where no sovereign authority exists. Without power above individuals to keep them in awe, humans' self-interested rationality leads to perpetual conflict. Each person pursues their own advantage, trusting no one, fearing everyone, resulting in war of all against all.
""And the life of man, solitary, poor, nasty, brutish, and short.""
— His famous description of life in the state of nature. Without government securing peace, humans live in constant fear and danger. No industry, agriculture, arts, or letters can develop because anyone's effort might be stolen. Existence reduces to mere survival, lonely and terrible.
""Covenants, without the sword, are but words and of no strength to secure a man at all.""
— Hobbes's core political insight. Agreements and promises mean nothing without power to enforce them. Morality requires enforcement. The sovereign must have absolute power to punish covenant-breakers, or social order collapses back into natural war. Justice is whatever the sovereign commands.
Hobbes built his political philosophy on mechanical materialism. Everything is matter in motion. Thoughts are physical brain processes. Desires are motions toward objects. Will is the last appetite before action. Reasoning is calculation. This reductive materialism shocked contemporaries but enabled treating politics scientifically. If humans are just sophisticated machines, politics becomes engineering — design institutions that make self-interested machines cooperate.
His psychology is simple: humans seek pleasure and avoid pain. We desire power (capacity to obtain future goods) and fear death, especially violent death. Reason calculates how to satisfy desires and avoid fears. These principles alone explain all behavior. No mysterious faculties, no immaterial souls, no divine purposes — just matter, motion, and mechanism.
From this foundation he deduced the state of nature. Without government, everyone has natural right to everything — no property, no justice, no mine versus thine. Each person judges what’s needed for self-preservation. This leads to war. Not because humans are evil but because rational self-interest in conditions of scarcity and equality generates conflict. If everyone has right to everything and everyone’s roughly equal in power (even the weakest can kill the strongest through cunning), everyone threatens everyone. Rational response is preemptive attack. But everyone reasons this way, so everyone attacks, and perpetual war results.
This condition is intolerable. Reason discovers laws of nature — rational principles for escaping war. First law: seek peace. Second: surrender natural right to all things in exchange for others doing likewise (the social contract). Third: keep covenants. These aren’t divine commands but theorems of self-interest. Cooperation beats conflict if cooperation can be sustained.
But here’s the problem: cooperation can’t be sustained without enforcement. Everyone knows defection benefits them if others cooperate. Everyone therefore has incentive to break covenants when advantageous. Knowing this, no one trusts anyone, so cooperation never starts. Solution: establish sovereign with absolute power to enforce covenants. Transfer everyone’s natural right to the sovereign, who punishes covenant-breakers with death. Now keeping covenants is rational — breaking them brings certain punishment. Justice becomes whatever the sovereign commands. Morality becomes civil law.
The sovereign must be absolute. If subjects can judge when sovereign acts unjustly, they retain natural right to resist, returning to state of nature. No separation of powers — that’s multiple sovereigns competing, thus war. No right to rebel — that dissolves the contract. No freedom of conscience if it threatens order — dangerous opinions must be suppressed. The sovereign is above law, cannot act unjustly (justice is what sovereign commands), and cannot be punished. Absolute power is required to maintain peace. Better tyranny than anarchy.
Hobbes didn’t care whether sovereign is monarch, aristocracy, or assembly — any form works if power is absolute and undivided. But he preferred monarchy for practical reasons (faster decisions, fewer internal conflicts). His absolutism applied to religion too. The sovereign determines doctrine and worship. Church and state must be unified under sovereign authority. Competing religious authorities create faction and war.
This brutally secular politics shocked everyone. Royalists hated reducing monarchy to social contract. Republicans hated absolutism. Everyone hated his materialism and suspected atheism. But his logic was ruthless and compelling: either accept absolute sovereign or accept war. Fear of violent death drives rational agents to authorize absolute power. Politics is applied geometry — deduce institutions from axioms about human nature.