This is a sketch of the Stoic doctrine based on the original authorities. If you strip Stoicism of its paradoxes and its wilful misuse of language, what is left is simply the moral philosophy of Socrates, Plato, and Aristotle, dashed with the physics of Heraclitus. Stoicism was not so much a new doctrine as the form under which the old Greek philosophy finally presented itself to the world at large.
Philosophy Among the Greeks and Romans
Division of Philosophy
Dates and Authorities