My research interests fall roughly into the following categories:
- Stoicism, with a particular focus on Roman Stoicism. Recent work has included a number of papers on Epictetus and Marcus Aurelius, and bibliographies on both for Oxford Bibliographies Online. I have a contract to write a book on Marcus Aurelius, which I hope to complete in due course.
- The Stoic Tradition. I have recently edited The Routledge Handbook of the Stoic Tradition (2016) and published articles on the reception of Stoicism in the Renaissance and in early modern philosophy (Henry More, Shaftesbury, Ralph Cudworth).
- Renaissance Philosophy. I have a number of projects looking at aspects of Renaissance philosophy. These have included the reception of Stoicism in the period (noted above) and work on how philosophy was conceived during the period (see below). I have also written about the Aristotelian philosopher Pietro Pomponazzi.
- Philosophy as a Way of Life. Ever since my PhD, I have been interested in the metaphilosophical idea of philosophy as a way of life. The idea was formulated by Pierre Hadot, whose work influenced the late work of Michel Foucault. The idea informed my doctoral work on Stoicism and subsequent book, The Art of Living (2003). At present I am working on a monograph that uses the idea of philosophy as a way of life to bring out otherwise neglected features of the philosophy of the Renaissance.