EN
The main aim of the article is to present the interpretation of the prooimion on the Artemidorus’ papyrus. Further, I compare it to the first chapter of pseudo-Aristotle’s treatise On the cosmos (De mundo). I argue that both text (though not the entire treatise On the cosmos) share a common intellectual heritage of Platonism. I trace several motives back to Plato’s dialogues and illustrate how both texts entail a platonic conception of morally relevant forming of the soul in accordance with object of its study.