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Head-to-Head Comparison

Sigmund Freud vs Thomas Aquinas

Sigmund Freud (IQ 185) vs Thomas Aquinas (IQ 170). Side-by-side comparison of intellect, achievements, era and cultural impact.

Sigmund Freud
1856–1939 · AT
185
Estimated IQ
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Thomas Aquinas
1225–1274 · IT
170
Estimated IQ
Read full biography →
Born18561225
Died19391274
CountryATIT
Estimated IQ 185 170
Best known forPsychoanalysis, including the theories of id, ego and super-ego, oedipus complex, repression, defense mechanism

Who had the higher IQ?

By the most cited estimates, Sigmund Freud tops this matchup with an estimated IQ of 185, a 15-point margin over Thomas Aquinas (170). IQ estimates for historical figures are reconstructions, not test results — they sit on top of biographical evidence, productivity, and the difficulty of the problems each person solved. Treat the number as a directional signal, not a verdict.

Achievements compared

Sigmund Freud is best known for: Psychoanalysis, including the theories of id, ego and super-ego, oedipus complex, repression, defense mechanism Thomas Aquinas is best known for: —

Recognition. Sigmund Freud: Goethe Prize (1930) Foreign Member of the Royal Society. Thomas Aquinas: —.

Different eras, different boards

The two were born roughly 631 years apart (1856 vs 1225), which matters: scientific tools, available knowledge, and intellectual culture compound. Comparing minds across eras is comparing players on different boards.

The verdict

So who was greater? The honest answer: they're not strictly comparable. By raw IQ proxy, Sigmund Freud edges out. By measurable, lasting influence in their respective field, both are anchors of the human record. If you have to pick one to bet civilization on, pick the one working on the problem you care about.

Frequently Asked

Who had the higher IQ, Sigmund Freud or Thomas Aquinas?
Estimated IQs are 185 for Sigmund Freud and 170 for Thomas Aquinas. Sigmund Freud rates higher by 15 points. Historical IQ figures are reconstructions, not measured scores.
What is Sigmund Freud most famous for?
Psychoanalysis, including the theories of id, ego and super-ego, oedipus complex, repression, defense mechanism
What is Thomas Aquinas most famous for?
Did Sigmund Freud and Thomas Aquinas ever meet?
They were contemporaries, though there is no documented direct meeting in our sources.

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