Abstract This article focuses on the Platonic version of doctrine oikeiosis set forth by Piso in Cicero’s De finibus , Book V. The aims to show that: 1) account, while clearly having Stoic features, is also consistent with eudaemonistic character Socrates’ and Plato’s ethics; 2) replacement “assimilation god”, attested a passage Anonymous Commentary Theaetetus derives from intent remove Epicure...