Stoicism: beliefs, history and sources

History & overview

Two handles on everything; take the one you can hold.

The Athenian school that became Rome's working religion of self-command: the cosmos is one rational living body, fate is not negotiable, and the only thing wholly yours is the use you make of your own judgement. Its surviving texts are a freed slave's lecture notes, a playwright-financier's letters and an emperor's private notebook — and since 2012 a UK non-profit has run them as a free online course each October.

Why it is filed this way

A philosophy in antiquity and, since about 2010, something closer to a self-help movement with academic supervision. The modern revival keeps the ethics and mostly drops the physics, which traditional readers argue removes the ground the ethics stood on. Both wings are on this page rather than split, because the modern body deliberately presents itself as continuous with the ancient one and reads the same four texts.

The Athenian school closed in antiquity and no Stoic teacher ordained another after the third century. The texts stayed in circulation — Lipsius and the Neostoics revived them in the sixteenth century — and the practice today is rebuilt from Epictetus, Seneca and Marcus rather than handed down.

DeitiesThe Stoics were not atheists and not quite theists. God is the designing fire pervading the world — providence, logos, Zeus as a name for the whole — inseparable from matter and identical with fate. You can pray to it, but not for a different outcome; only for a different response.

Foundedc. 301 BCE · Athens

FounderZeno of Citium

AfterlifeThe soul disperses; some Stoics allowed it survives until the next conflagration. Marcus Aurelius keeps writing "gods or atoms" and says it changes nothing.

TextsEpictetus, Discourses and Enchiridion · Marcus Aurelius, Ta eis heauton (Meditations) · Seneca, Letters to Lucilius

The map

Stoicism’s corner of it — solid lines are descent; dotted lines are resemblance only, ideas held in common across unrelated faiths. Click a node to recenter; ✕ returns here. All 171 faiths →

c. 400 BCE Cynicism c. 301 BCE Stoicism

Core Tenets

3 — a sample of the center, never the sum Enter →

Some things are up to us; most are not. Judgement, impulse, desire and refusal are ours. Body, property, reputation and office are not, and treating them as if they were is the whole of what goes wrong. Go deeper — context →

The cosmos is a single rational animal, and you are a part of it. Providence is not a plan made for you; it is the fact that the whole is ordered. Living well means agreeing with how it is already going. held by most Go deeper — context & 1 source →

Whether you can keep the ethics after dropping the physics. Modern practitioners mostly take the exercises without the providential cosmos. Traditional Stoics answer that "live according to nature" is empty if nature is not rational, and the argument runs live in the same conference hall. ⚖ contested within Go deeper — context →

Figures

who it looks to — gods, spirits, ancestors; some rooms are empty on principle Enter →

E Epictetus — a freed slave with a school in Nicopolis. He taught that the man who owned his body never owned anything that mattered, and charged his students with proving it in ordinary life rather than in argument. Domain The dichotomy of controlStanding Wrote nothing. The Discourses are notes taken by his student Arrian, who said he was only writing down what he heard Meet them — context & 1 source →

Rites & Ritual

what its people do — and when Enter →

The morning rehearsal and the evening audit. Marcus opens Book Five by talking himself out of bed. Seneca describes lying in the dark going over the day, and reports it makes sleep better, not worse. When Daily, at waking and before sleepWho Anyone; done alone Go deeper — context →

Stoic Week. A free seven-day course run each October since 2012 by Modern Stoicism, with a public conference, Stoicon, alongside it — online in recent years, and scheduled for 17 October in 2026. When Annual, each OctoberWho Anyone with an internet connection; free Go deeper — context →

Where next

the museum exit — every door leads deeper in

Hinduism — 14 shared ideas, a different faith Buddhism — 14 shared ideas, a different faith Jainism — 14 shared ideas, a different faith Sikhism — 13 shared ideas, a different faith Branch Stoicism — inherit everything, change what you must The library of ideas — what Stoicism shares with every other faith A faith at random — somewhere you have never been

Sources

2 cited texts

Diogenes Laertius, Lives of the Eminent Philosophers VII.87, R. D. Hicks translation where it is cited →
Diogenes Laertius, Lives of the Eminent Philosophers VII.2, R. D. Hicks translation where it is cited →

These citations identify texts used in the linked passages. Follow each passage to read its quotation and context. A tradition’s own texts explain its teachings; historical claims may also require independent scholarship. Translations marked (rendered) are our own plain-English wording, not a standard edition; where a passage matters, read it in a full translation.