Thomas Hobbes IQ

Hobbes never took an IQ test. Catharine Cox's 1926 study gave him a corrected estimate of 165. Adjusted for the Flynn effect that is about 143, so LifeScore uses a range of 143 to 165, with 145+ as the marker. Leviathan is the main evidence.

In Leviathan he argued that without a strong authority, life would be a war of all against all, and he described it as solitary, poor, nasty, brutish and short. His answer was a social contract in which people give up some freedom to a sovereign in return for safety.

Yes. Hobbes travelled in Europe and met Galileo in Italy in 1636, and he was impressed by the idea that all natural events are motion. He took that view into his philosophy and tried to explain thought, feeling and politics as matter in motion.

The 165 is Catharine Cox's corrected estimate from her 1926 study of 301 eminent people born between 1450 and 1850. She rated each person from biographical records of what they could do as a child and young adult, then corrected for gaps in the record.

Cox's numbers sit on an old ratio-IQ scale. One secondary tabulation subtracts about 22 points for the Flynn effect, which puts Thomas Hobbes near 145.

LifeScore lists 145+, and the working range of 145 to 165 spans both figures. None of them is a test result.

Hobbes tried to reason from simple definitions to firm conclusions, in the style of Euclid. He claimed to have found geometry late, at about 40, and was thrilled by the idea that a few clear starting points could prove complex results.

What supports it

• Cox's 1926 study gave Hobbes a corrected estimate of 165, which falls to about 143 after a Flynn-effect adjustment.
• Leviathan (1651) set out the social contract in a tightly argued system.
• He translated Thucydides in 1629 and Homer in his eighties.

What it cannot prove

• His claims to have squared the circle were wrong, which shows ability varies by field.
• Political philosophy is judged on influence and argument, not on measures of reasoning speed.
• Cox's scale runs higher than modern deviation IQ, by roughly 22 points in one tabulation.

Thomas Hobbes's IQ is represented here by a retrospective estimate of 145+, not a verified test result. Thomas Hobbes is best known for exceptional logical method. The useful question is what the surviving evidence shows, not whether a precise modern score can be recovered.

Blunt, logical and unafraid of unpopular conclusions. Tried to reason about politics the way geometry reasons about shapes.

The dominant archetype here is The Logician. This archetype shapes decision patterns: what feels natural, what creates friction, and what blind spots tend to emerge.

Estimated IQ is 145+. This is a rough estimate based on documented accomplishments and contemporary accounts, not a literal measurement.

Hobbes said his mother gave birth to twins, himself and fear, when news of the Spanish Armada reached her.