 The first century BC Epicurean philosopher Philodemus wrote a treatise also called On Poetry in which he seems to offer quotations or perhaps summaries of some passages of On Poets. What Aristotle seemed to have focused on is the nature of poetry, and the importance of mimesis (Janko 2011, F4: “mimêsis has been posited as essential to the art of poetry”). And he seems to have clearly stated that mimesis, at least in the case of poetry, involves people in action (Janko 2011, F6a: Poets “depict the actions of people acting…”), and that this action must be complete (Janko 2011, F45: “The poet is a representer of a complete action”), all of which will be elaborated upon in the Poetics.