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School

Stoicism

The Hellenistic school that taught life in agreement with the divine reason pervading the cosmos.

Also called the Stoa

Introduction

Stoicism is the school founded by Zeno of Citium in Athens around 300 BCE, named after the Painted Porch, the Stoa Poikilē, where he taught. The Stoics divided philosophy into logic, physics and ethics, and held that they formed one whole, like the shell, the white and the yolk of an egg.

Their physics taught that the cosmos is a single living being, pervaded and ordered by a divine reason, the logos, which they also called God, Zeus, nature and fate. Everything that happens is woven together by this reason, and the human mind is a portion of it. Their ethics followed: the goal of life is to live in agreement with nature, which is to live by reason. Virtue is the only good; health, wealth and reputation are “indifferent”. The passions are false judgments, and the sage, who judges truly, is free of them.

The Stoics were among the first to call the human being a citizen of the cosmos. Their teaching that one reason runs through all things, and through each mind, made Stoicism one of the ancient world’s most influential accounts of the unity of the cosmos and of human kinship with the divine.

History

Historical

After Zeno, Cleanthes wrote a hymn to Zeus as the reason that governs all things, and Chrysippus in the third century BCE gave the school its systematic form in hundreds of books, nearly all lost. In the second and first centuries BCE, Panaetius and Posidonius adapted the school to the Roman elite, and Cicero transmitted much of its teaching in Latin.

Under the Roman Empire, Stoicism became above all a practical philosophy of life. Its best-known representatives are Seneca, statesman and dramatist; Musonius Rufus; his pupil Epictetus, a former slave; and the emperor Marcus Aurelius. Their works, unlike the early Stoics’, survive.

Stoic ideas of the logos, of natural law and of the self-examined life passed into Jewish and Christian thought, from Philo and the Church Fathers onward. In the Renaissance, Justus Lipsius revived Stoicism in a Christian form, and its influence is visible in Spinoza. In the twentieth century the founders of cognitive therapy cited Epictetus, and Stoicism has since found a wide popular readership.

  1. c. 300 BCEZeno teaches at the Painted Porch in Athens
  2. 3rd c. BCEChrysippus systematizes the school
  3. 1st c. CESeneca and Musonius Rufus in Rome
  4. early 2nd c. CEArrian records the discourses of Epictetus
  5. 170s CEMarcus Aurelius writes his Meditations
  6. 1584Justus Lipsius’s On Constancy revives Stoicism

Major thinkers

Key concepts

Important texts

Convergence and divergence

Resemblance and difference, given equal room. Each note is marked with the kind of statement it makes.

Areas of convergence

  • Logos, with Christian Mysticism

    Historical

    Christian writers drew on the Stoic idea of a divine reason in all things, and Maximus the Confessor taught that the reasons of all creatures are contained in the divine Logos.

Areas of divergence

  • God, with Neoplatonism

    Scholarship

    The Stoic God is wholly immanent, a fiery breath within the body of the world; Plotinus criticized Stoic materialism and placed the One beyond all being.

Cite this entry
Chicago (bibliography)

“Stoicism.” Tradition. The Library, Unitive Knowledge Society. Last modified November 7, 2026. https://www.unitiveknowledge.org/library/traditions/stoicism.

Chicago (note)

“Stoicism,” tradition, The Library, Unitive Knowledge Society, last modified November 7, 2026, https://www.unitiveknowledge.org/library/traditions/stoicism.

MLA

“Stoicism.” The Library, Unitive Knowledge Society, 7 Nov. 2026, www.unitiveknowledge.org/library/traditions/stoicism.

BibTeX
@misc{traditions-stoicism,
  title = {{Stoicism}},
  howpublished = {The Library, Unitive Knowledge Society},
  note = {Tradition. Last modified November 7, 2026},
  year = {2026},
  url = {https://www.unitiveknowledge.org/library/traditions/stoicism}
}

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