Plato’s Metaphysical Principle of Opposites
“Plato’s Metaphysical Principle of Opposites,” Desire, Motivation, and Normativity in Ancient Philosophy, eds. Manuel Ortiz de Landazuri and Daniel Doyle Sanchez (Routledge, 2026).
Better Liars
“Better Liars,” The Art of Assemblage: Festschrift for David Reeve, eds. Mariska Leunissen and Pavlos Kontos (Hackett, 2025), 20-37.
The Epicurean Riddle of Induction
“The Epicurean Riddle of Induction,” for Aristotelian Induction and Its Reception, eds. Henrik Lagerlund and Mika Perälä.
The Unity of the Virtues in Theaetetus
“The Unity of the Virtues in Theaetetus,” contribution for volume on Anonymous Commentary on Plato’s Theaetetus, ed. Federico Maria Petrucci.
If there is Motion, there is Void
“If there is Motion, there is Void,” for Festschrift for Christof Rapp, eds. Laura Castelli, Klaus Corcilius and Philipp Brüllmann.
Kant on the Unity and Plurality of the Virtues
“Kant on the Unity and Plurality of the Virtues,” in ed. Melissa Merritt, Kant and Stoic Ethics (Cambridge: Cambridge University Press, 2025), 71-87.
Relativism and Skepticism without Disagreement
“Relativism and Skepticism without Disagreement,” for Truth and Relativism in Ancient Philosophy, ed. by Tamer Nawar and Matthew Duncombe (Cambridge: Cambridge University Press, forthcoming).
Deliberative Imagination and Practical Truth
“Deliberative Imagination and Practical Truth,” for Practical Truth, eds. Christopher Frey and Jennifer Frey (New York: Oxford University Press, 2025): 276-289.
The Flaw of Generics
“The Flaw of Generics,” Logical Analysis and History of Philosophy (2025): 1-23.
Stoic Definitions Without Forms
“Stoic Definitions Without Forms,” in Peter Anstey and David Bronstein (eds.), Definition and Essence from Aristotle to Kant (New York: Routledge, 2025), 71-89.
The Rule of Law in Hellenistic Philosophy
“The Rule of Law in Hellenistic Philosophy,” Cambridge History of Democracy, eds. Eric Robinson and Valentina Arena, (CUP, 2025).
Stoic Cosmopolitanism
“Stoic Cosmopolitanism,” Rationalität-Freiheit-Verantwortung: Festschrift for Julian Nida-Rümelin, ed. Dorothea Winter (De Gruyter, 2024), 243-253.
Vagueness and Kataleptic Impressions
“Vagueness and Kataleptic Impressions,” Aristotelian Society Supplementary Volume 96.1 (2022): 165–183.
Metaethics for Discord: Plato’s Euthythro
“Metaethics for Discord: Plato’s Euthyphro,” Ancient Philosophy Today: Dialogoi (2022): 3-23.
No More This than That: Pyrrhonian Indeterminacy
“No More This than That: Pyrrhonian Indeterminacy,” Midwest Studies in Philosophy 45 (2021): 57-76.
Skepticism as Philosophy: A Reply to Richard Bett
“Skepticism as Philosophy: A Reply to Richard Bett,” Skepsis Vol. XI, N. 20 (2020): 105-116.
The Stoic Conception of Law
“The Stoic Conception of Law,” Polis 38.3 (2021): 557-572.
The Agency of the World
“The Agency of the World,” in Ricardo Salles (ed.), Biology and Cosmology in Ancient Philosophy. From Thales to Avicenna (Cambridge: Cambridge University Press, 2021), 208-223.
The Euthyphro Problem Revisited
“The Euthyphro Problem Revisited.” In David Kaspar (ed.), Explorations in Ethics (Palgrave Publishers, 2020), 25-46.
Stoic Definitions Without Forms
“Stoic Definitions Without Forms,” in Peter Anstey and David Bronstein (eds.), Definition and Essence from Aristotle to Kant (New York: Routledge, 2025), 71-89.
Incomplete Ignorance
“Incomplete Ignorance,” co-authored with Jens Haas. In Vlasits and Vogt (eds.), Epistemology After Sextus Empiricus (New York: Oxford University Press, 2020), 254-76.
Rethinking the Contest Between Pleasure and Wisdom: Plato’s Philebus: 11a-14b
“Rethinking the Contest Between Pleasure and Wisdom: Plato’s Philebus: 11a-14b.” In Panos Dimas, Gabriel Richardson Lear, Russell Jones (eds.), Plato’s Philebus (Oxford University Press, 2019), 17-33.
A Unified Notion of Cause
“A Unified Notion of Cause,” Rhizomata: A Journal for Ancient Philosophy and Science 6(1) (2018): 65-86.
Love and Hatred
“Love and Hatred,” co-authored with Jens Haas, Routledge Handbook of Love in Philosophy, ed. Adrienne Martin (Routledge, 2018), 344-356.
Plato on Hunger and Thirst
“Plato on Hunger and Thirst,” Logical Analysis and History of Philosophy 20 (2017): 103-119.
What is Hedonism?
“What is Hedonism?” Pain and Pleasure in Classical Antiquity, ed. William Harris (Brill, 2018), 93-110.
Who You Are Is What You Eat: Food in Ancient Thought
“Who You Are Is What You Eat: Food in Ancient Thought,” Oxford Handbook of Food Ethics, eds. Anne Barnhill, Mark Budolfson, Tyler Doggett (OUP, 2018), 741-758.
Introduction: Skepticism and Metaphysics in Diogenes Laertius
“Introduction: Skepticism and Metaphysics in Diogenes Laertius,” Pyrrhonian Skepticism in Diogenes Laertius, Text and Translation (Greek-English) with Commentary and Essays, ed. Katja Maria Vogt, SAPERE Vol. XXVII (Mohr Siebeck, 2015), 3-14.
All Sense-Perceptions are True: Epicurean Responses to Skepticism and Relativism
“All Sense-Perceptions are True: Epicurean Responses to Skepticism and Relativism,” Lucretius and Modernity, eds. Jacques Lezra and Lisa Blake (Palgrave, 2016), 145-159.
Imagining Good Future States: Hope and Truth in Plato’s Philebus
“Imagining Good Future States: Hope and Truth in Plato’s Philebus,” On the Psyche, Festschrift for Christopher Gill, eds. Richard Seaford, John Wilkins and Matthew Wright (OUP, 2016), 33-48.
Ignorance and Investigation
“Ignorance and Investigation,” co-authored with Jens Haas, Routledge International Handbook on Ignorance, eds. Matthias Gross and Linsey McGoey (Routledge, 2015 and 2022), 17-25.
Taking the Same Things Seriously and Not Seriously: A Stoic Proposal on Value and the Good
“Taking the Same Things Seriously and Not Seriously,” in Dane R. Gordon & David B. Suits (eds.), Epictetus: His Continuing Influence and Contemporary Relevance (Rochester: RIT Press, 2014), 55-75.
Plato on Madness and the Good Life
“Plato on Madness and the Good Life,” Mental Illness in Antiquity, ed. William Harris (Brill, 2013), 177-192.
Appearances and Assent: Sceptical Belief Reconsidered
“Appearances and Assent: Sceptical Belief Reconsidered,” The Classical Quarterly 62 (2012): 648-663.
The Aims of Sceptical Investigation
“The Aims of Sceptical Investigation,” Pyrrhonism in Ancient, Modern, and Contemporary Philosophy, ed. Diego Machuca (Springer, 2011), 33-50.
Why Pleasure Gains Fifth Rank: Against the Anti-Hedonist Interpretation of the Philebus
“Why Pleasure Gains Fifth Rank: Against the Anti-Hedonist Interpretation of the Philebus,” Plato’s Philebus, eds. John Dillon and Luc Brisson (Akademia, 2010), 250-255.
Belief and Investigation in Plato’s Republic
“Belief and Investigation in Plato’s Republic,” Plato 9 (2009): 1-24.
Sons of the Earth: Are the Stoics Metaphysical Brutes?
“Sons of the Earth: Are the Stoics Metaphysical Brutes?” Phronesis 54 (2009): 136-154.
Duties to Others: Demands and Limits
“Duties to Others: Demands and Limits,” Kant’s Doctrine of Virtue, ed. Monika Betzler (De Gruyter, 2008), 219-243.
The Good is Benefit: On the Stoic Definition of the Good
“The Good is Benefit: On the Stoic Definition of the Good,” Proceedings of the Boston Area Colloquium in Ancient Philosophy (2008): 155-174.
Anger, Present Injustice, and Future Revenge in Seneca’s De Ira
“Anger, Present Injustice, and Future Revenge in Seneca’s De Ira,” eds. K. Volk and W. Gareth, New Developments in Seneca Studies (Brill, 2006), 57-74.
Skeptische Suche und das Verstehen von Begriffen
“Skeptische Suche und das Verstehen von Begriffen,” Wissen und Bildung in der antiken Philosophie, eds. Christof Rapp and Tim Wagner (Metzler, 2006), 325-339.
Die frühe stoische Theorie des Werts
“Die frühe stoische Theorie des Werts,” Abwägende Vernunft, eds. Christian Schröer and Franz-Josef Bormann (De Gruyter, 2004), 61-77.