History & overview · every faith gets one
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.
The founding
Zeno came to Athens as a merchant, was shipwrecked, and fell into a bookshop. He read Xenophon on Socrates, asked where such men were to be found, and the bookseller pointed at Crates the Cynic walking past. He taught in the Stoa Poikile, the painted colonnade on the edge of the agora, which is why the school is named after a piece of public architecture rather than a person.
Its founding is bound to Zeno of Citium — c. 301 BCE.
What it holds
Reality. One living cosmos, ordered throughout by reason, and nothing outside it.
The divine. The 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..
Death and after. The soul disperses; some Stoics allowed it survives until the next conflagration. Marcus Aurelius keeps writing "gods or atoms" and says it changes nothing..