Aristotle vs the Stoics: part II, ethics

Aristotle (left) and Zeno of Citium (right).

Did the Stoics come up with an innovative, powerful philosophy of life? Or did they just take Aristotle’s stuff, changed the language here and there, and called it a day? The possibility has often been raised, all the way back to Cicero’s On the Ends of Good and Evil, that Stoicism may differ more in wording than in substance from its Aristotelian counterpart. Is that true?

I have explored the issue at a recent workshop in practical philosophy that I ha...