Brad Inwood is William Lampson Professor of Philosophy and Classics at Yale University. He is the author of numerous works, including: Ethics and Action in Early Stoicism (1985), The Poem of Empedocles (second edition 2001), Reading Seneca: Stoic Philosophy at Rome (2005), Seneca: Selected Philosophical Letters (2007), Ethics After Aristotle (2014), Stoicism: A Very Short Introduction (2018), and Later Stoicism 155 BC to 200 AD (Cambridge, 2022).