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Dr. O’Reilly studied ancient philosophy at the University of Toronto, King’s College London, and the University of Oxford (DPhil, 2019). She joined King’s with a cross-appointment between Philosophy and Classics in 2019.

Research interests and PhD supervision

  • Pleasure and pain in ancient philosophy
  • Ancient moral psychology
  • Hellenistic ethics and psychology


Dr. O’Reilly has taught topics in Ancient Philosophy (including Pre-Socratics, Plato, Aristotle, Hellenistic Philosophy, Late Ancient Philosophy, and specialist modules on particular texts and schools), Moral Philosophy, Ethics (Historical and Contemporary), Gender & Philosophy, and Women in Ancient Thought. She holds a PGDip (Postgraduate Diploma) in Higher Education, and a PGCAP (Postgraduate Certificate in Academic Practice) in Higher Education from King’s Learning Institute, and is a Fellow of the HEA.

Expertise and public engagement

Dr. O’Reilly has worked with the Ancient Commentators on Aristotle Project, hosted at KCL, since 2012. In 2019 she is co-presenting with Prof. Christopher Gill at Stoicon-x, the event for public engagement with Stoicism at Senate House in London. 

Selected publications

  • ‘The Jellyfish’s Pleasures in Philebus 20b-21d’ in Phronesis 64:3, July 2019.
  • ‘Cicero Reading the Cyrenaics on the Anticipation of Future Harms’ in Epoché: A Journal for the History of Philosophy 23:2 (Spring 2019) 431-43.
  • ‘Jars, Sieves and Souls: The Myth of the Water Carriers in Gorgias 492-3’ in Plato’s Pleasures: New Perspectives, ed. J. Aufderheide and M. Erginel (OUP, forthcoming).