The Lives and Opinions of Eminent Philosophers · Character

Thales

Miletus's first philosopher, who measured the pyramids by their shadows and fell into a well while gazing at the stars.

major

Also known as O Thales

First appearance: Thales

As a major figure in The Lives and Opinions of Eminent Philosophers, Thales is not background color—the story leans on what they do once the chapter opens.

Founder of the Ionian school, known for his natural philosophy and prediction of the eclipse.

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Thales stands at the head of Diogenes Laërtius's whole enterprise, the Ionian founder from whom the entire Greek philosophical succession is traced, counted among the Seven Sages and credited with predicting an eclipse. He is the archetype of the distracted thinker, so absorbed in the heavens that he tumbled into a well, yet shrewd enough to corner the olive-press market when he foresaw a bumper harvest. His insistence that all things originate in water sets the terms for every argument that follows, making him the indispensable opening act of the Lives.

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Character Web

22 connections

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Character groups

Pre-Socratics and Skeptics
Socratic Circle and Historian
Major Philosophers and Biographers
Pythagorean and Comic Philosopher
Protagonist

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Narrative arc

Story tension across the book — this chapter sits in Exposition.

Setup
Escalation
Breaking point
Aftermath
Closing

Monimus’s feigned madness and destruction of the money is the emotional and psychological peak because it dram…

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In the story

Thales appears across 7 companion beats. Open any chapter in the free preview to see the notes beside the text.

The Lives and Opinions of Eminent Philosophers
Founder of the Ionian school, known for his natural philosophy and prediction of the eclipse.
Book I: The Origins and Divisions of Philosophy
Thales is introduced as the first to be called 'Wise,' a founder of natural philosophy, and a key figure in the early philosophical tradition.
Thales
The central figure of the chapter, described as the first to be called wise, a founder of natural philosophy, astronomer, and political advisor.
Myson
Referenced in connection with the oracle's answer about Chilo.
Pherecydes
Recipient of a letter from Pherecydes, in which Pherecydes entrusts his book to Thales for publication or safekeeping.
Anaximenes
Mentioned in Anaximenes' letter recounting his accidental death while stargazing.
Xenophanes
Xenophanes argued against the opinions of Thales.

Chapter companion notes

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See Thales in The Lives and Opinions of Eminent Philosophers