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About this book

What if philosophy asks you to change not just your mind, but your whole way of life?

In Iamblichus' Life of Pythagoras, a teacher becomes the centre of a demanding way of living. Drawing on older writers and school tradition, Iamblichus traces Pythagoras from his childhood on Samos through his studies with Pherecydes, Thales and Anaximander to his teaching in southern Italy.

Writing some eight hundred years after Pythagoras, Iamblichus offers more than a life story. His portrait gathers rules for daily conduct, accounts of friendship and stories of strange powers. It shows how later ancient readers remember the sage, and how philosophy becomes, for Iamblichus, a discipline of the soul.

What you’ll discover

  • A life of learning Follow Iamblichus' account of a thinker shaped by travel, study and encounters with other teachers.
  • A city meets Pythagoras Discover how Iamblichus presents the teacher's arrival in Croton as an event for the whole city.
  • Silence before belonging Enter an account of a community where candidates face careful examination and demanding rules.
  • Number, music and harmony Explore a tradition that connects mathematics and music with the care of the soul.
  • Virtue in daily practice See wisdom, courage, self-control and justice take shape in Iamblichus' stories of Pythagorean life.

Who will love it

This is for readers who love ancient philosophy, the roots of mathematics and music, mystery schools, and the legends around the first man to call himself a lover of wisdom.

What’s inside

The key ideas, in the 15-minute summary

  1. An oracle foretells the birth of Pythagoras
  2. He studies for decades in Egypt and Babylon
  3. He gathers disciples at Crotona in Italy
  4. His speeches reform the people of Crotona
  5. Music heals the soul and reveals harmony
  6. Admission to the school is strict
  7. Symbols, wonders and the question of divinity
  8. Justice, self-control and courage in action
  9. The plot against the school and its successors
  10. Later fragments show how the ideas lasted

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Biography & Letters

Iamblichus' Life of Pythagoras

by Iamblichus · 300

A young man leaves a holy mountain and boards a ship, where sailors planning to sell him come to honor him.

Challenging5–10 hours to readEnglish

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In short

Picture a young man walking down Mount Carmel, never looking back, and asking some sailors one question: are you bound for Egypt? They had planned to sell him as a slave.

Iamblichus' Life of Pythagoras by Iamblichus, the cover

Iamblichus' Life of Pythagoras at a glance

Reading time
About 4 h 50 min3 h 50 min fast, 5 h 45 min slow
Length
69,100 words
Library level
Challenging long sentences, a rich vocabulary
First published
about AD 300by Iamblichus

Reading time at 238 words a minute (fast 300, slow 200). How long the classics take to read · Updated

From the 15-minute summary · Key idea 1

An oracle foretells the birth of Pythagoras

Iamblichus opens by calling on the gods, because he believes the philosophy of Pythagoras came from them. The island of Samos is the homeland, and the parents are Mnesarchus and Pythais.

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Which edition is right for me
15-minute summary
The key ideas of the whole book in about 13 minutes. A good first look, or a refresher.
Details
First published
300
Language
English
Reading time
5 h 50 min
Level
Challenging

Cite this edition

Iamblichus. Iamblichus' Life of Pythagoras. Library of Alexandria, 2026, libraryofalexandria.com/products/iamblichus-life-of-pythagoras.

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What is Iamblichus' Life of Pythagoras about?

It tells the life of the philosopher Pythagoras, from his birth in Sidon and his years in Egypt and Babylon to his school at Crotona. It also describes the rules, music, virtues and friendships of his followers.

Who was Pythagoras according to Iamblichus?

Iamblichus presents him as a teacher whose soul came from the realm of Apollo. He is the first to call himself a philosopher, a student of many nations, and a lawgiver whose disciples reformed cities.

What is the tetractys in the Pythagorean oath?

The tetractys is the set of the first four numbers, one, two, three and four, which add up to ten. The Pythagoreans held that it contains all musical ratios and sworn oaths honored its discoverer.

The author

Iamblichus

245–325 · Syrian Neoplatonist philosopher

Iamblichus was a Neoplatonist philosopher who lived in Syria from about 245 to about 325. He wrote in Greek. His works include a life of Pythagoras and writings on philosophy, mathematics, and religious practices. He studied with the philosopher Porphyry and later taught students in Syria.

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