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C3 · Stoicism · The core

From the porch to the palace

From Zeno under a painted porch to an emperor on campaign, a freed slave and a modern author: who the Stoics were.

For this is your duty, to act well the part that is given to you; but to select the part, belongs to another.

— Epictetus, Enchiridion 17 (tr. George Long)
  1. Early Stoa

  2. Middle Stoa

  3. Late Stoa: Rome

  4. Modern revival

Zeno of Citium

founder of the school · c. 334 – c. 262 BC · Citium (Cyprus) and Athens

Zeno came from Citium on Cyprus and spent most of his life in Athens, where he founded the Stoic school and taught from about 300 BC [2]. He began teaching in the Stoa Poikile, the painted colonnade in the Agora, in 301 BC [2]. His followers were first called Zenonians and later Stoics, a name already used for poets who gathered at the same porch [2].

No quotation from Zeno of Citium is set here.

Choose a personEras are the ones the sources use; a person sits in the order they were born. Spacing is not to scale.

Under the painted porch

The name Stoicism comes from the Stoa Poikile, the painted porch, a colonnade decorated with scenes of battle on the north side of the Agora in Athens, where Zeno of Citium and his followers met near the end of the fourth century BC [1]. Zeno began teaching there in 301 BC [2].

Cleanthes, a former boxer who carried water at night to pay his way, led the school after Zeno for 32 years [3]. Chrysippus, his pupil and successor, expanded the doctrine so far that he is called the Second Founder of Stoicism [4].

Rome borrows the porch

Scholars usually divide Stoicism into three phases: the Early Stoa, the Middle Stoa, and the Late Stoa [1]. In the middle phase, Panaetius of Rhodes did much to introduce Stoic doctrines to Rome, with the patronage of Scipio Aemilianus [5]. His book On Duties was the main source for Cicero's own book of the same name [5].

Exile and the emperor's tutor

The Late Stoa is where the texts survive [1]. Musonius Rufus taught in Rome under Nero and was exiled to the island of Gyaros in 65 AD, and later banished again; a collection of extracts from his lectures still survives [6].

Seneca was born in Córdoba, tutored and then advised Nero, and in AD 65 was forced to take his own life over a conspiracy he may not have joined [7]. His 124 moral letters to Lucilius are one of the main bodies of evidence for ancient Stoicism [7]; the translation quoted here is Richard Gummere's, published in 1917, 1920 and 1925 [8].

Nothing, Lucilius, is ours, except time.

— Seneca, Letter 1 (tr. R. M. Gummere)

A teacher who had been a slave

Epictetus was born a slave in Phrygia, studied under Musonius Rufus, and taught after he was freed [9]. When Domitian banished philosophers from Rome he moved to Nicopolis and founded a school, where his pupil Arrian took the notes that became the Discourses and the Enchiridion [9].

For this is your duty, to act well the part that is given to you; but to select the part, belongs to another.

— Epictetus, Enchiridion 17 (tr. George Long)

The emperor who wrote Meditations

Marcus Aurelius was emperor from 161 to 180, and his Meditations is one of the most important sources for the modern understanding of ancient Stoicism [10]. The English translation quoted on this site is George Long's, from 1862 [11].

Short is life. There is only one fruit of this terrene life--a pious disposition and social acts.

— Marcus Aurelius, Meditations 6.30 (tr. George Long)

A modern revival

Stoicism has seen revivals, notably in the Renaissance and in the contemporary era [1]. Ryan Holiday has been credited with contributing to the increased popularity of Stoicism; he has presented it as a philosophy for modern people, and published The Obstacle Is the Way in 2014 and The Daily Stoic, with Stephen Hanselman, in 2016 [12]. His own site describes The Daily Stoic as 366 days of Stoic insights, with new translations of Marcus Aurelius, Seneca and Epictetus [13].

Not everyone agrees on how faithful his version is. At a Stoicon conference some attendees reportedly said it was not Stoicism, while others credit him with bringing many readers to the old texts [12]. The Further reading list below links his books, and the free translations to read the Stoics themselves.

Sources

  1. [1] Wikipedia: StoicismStoicism. Wikipedia, revision 1381864909.
  2. [2] Wikipedia: Zeno of CitiumZeno of Citium. Wikipedia, revision 1378348906.
  3. [3] Wikipedia: CleanthesCleanthes. Wikipedia, revision 1356338424.
  4. [4] Wikipedia: ChrysippusChrysippus. Wikipedia, revision 1366373021.
  5. [5] Wikipedia: PanaetiusPanaetius. Wikipedia, revision 1378720589.
  6. [6] Wikipedia: Gaius Musonius RufusGaius Musonius Rufus. Wikipedia, revision 1379803549.
  7. [7] Wikipedia: Seneca the YoungerSeneca the Younger. Wikipedia, revision 1382253570.
  8. [8] Wikipedia: Epistulae moralesEpistulae morales ad Lucilium. Wikipedia, revision 1380993776 (its translations list gives Gummere's as 1917, 1920, 1925).
  9. [9] Wikipedia: EpictetusEpictetus. Wikipedia, revision 1364934656.
  10. [10] Wikipedia: Marcus AureliusMarcus Aurelius. Wikipedia, revision 1379171261.
  11. [11] Wikipedia: MeditationsMeditations. Wikipedia, revision 1370141510 (its list of English translations gives Long's as 1862).
  12. [12] Wikipedia: Ryan HolidayRyan Holiday. Wikipedia, revision 1380912682.
  13. [13] Daily Stoic: booksThe Daily Stoic Books. dailystoic.com (Ryan Holiday's site), read 2026-10-27.