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Two thinkers, side by side

Life

Portrait of Galen
Galen

129 CE – c. 216 CE (traditionally 199 CE)

PhysicianEmpiricistRoman

Born Pergamon

He treated gladiators, then emperors, and built a system of medicine from animal dissection so authoritative that doctors were still quoting it as fact fourteen centuries later.

Portrait of Ibn Sina
Ibn Sina

980 CE – 1037 CE

IslamicPeripatetic

Born Bukhara

A child prodigy who mastered medicine at sixteen and philosophy by eighteen. He wandered Persia, writing the books that shaped medieval thought.

Connection

Galen Galenic medicine synthesized into the Canon Ibn Sina — Ibn Sina absorbed and systematized Galen's medical corpus into his own Canon of Medicine, the standard medical textbook across the Islamic world and, in Latin translation, European universities for over five hundred years.

Shared Ideas

Nature

Ideas

The Mind-Body ProblemNature
The IntellectBeingNatureFaith & Reason

Words

“Employment is nature's physician, and is essential to human happiness.”

— Galen

“The chief merit of language is clearness, and we know that nothing detracts so much from this as do unfamiliar terms.”

— Galen

“The knowledge of anything, since all things have causes, is not acquired until one knows the causes.”

— Ibn Sina

“The world is divided into men who have wit and no religion, and men who have religion and no wit.”

— Ibn Sina

Key Moments

c. 157 CE

Appointed physician to the gladiators

c. 168 CE

Becomes physician to Marcus Aurelius

980 CE

Born near Bukhara

c. 996 CE

Mastering Medicine by Sixteen

c. 1012 CE

The Canon of Medicine and The Book of Healing

1037 CE

Death in Isfahan

Works

On the Natural Faculties

The Book of Healing

Atlas of Thinkers

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Volume I · Ancient Greece · 624-262 BCE