Brad Inwood is University Professor of Philosophy and Classics at the University of Toronto. He is the author of numerous works, including Seneca: Selected Philosophical Letters (2007), Reading Seneca: Stoic Philosophy at Rome (2008) and The Poem of Empedocles, the editor of The Cambridge Companion to the Stoics (Cambridge University Press, 2003) and co-translator (with Miriam Griffin) of Lucius Annaeus Seneca: On Benefits (2011).