• Book 1 of the Treatise is a contribution to logic, one which aims to provide an account of the powers and operations of the human understanding. Hume claims that the operations of the understanding are each a mode of conception. But some passages suggest that there is an operation of the understanding distinct from and irreducible to conception: supposition. Hume’s notion of supposition has been taken to provide a vehicle for realism concerning items of which we have no conception. This chapter …Read more
  •  345
    I engage with two themes from Lorne Falkenstein’s Consciousness, Time, and Skepticism in Hume's Thought. First, I consider two of Falkenstein's claims concerning Hume’s metaphysics of perceptual experience: that complex sensory impressions are “undivided wholes” and that the existence of such impressions is inconsistent with a principle central to the Treatise’s arguments against the infinite divisibility of extension. Second, I raise questions for Falkenstein’s reading of Humean skepticism, acc…Read more
  •  44
    Hume and Contemporary Epistemology (review)
    Notre Dame Philosophical Reviews. 2025.
  •  287
    Hume's Distinctio Rationis
    Oxford Studies in Early Modern Philosophy. forthcoming.
    In Treatise 1.1.7, Hume offers an account of rational distinctions, which are traditionally understood as distinctions between items that cannot exist separately. Such distinctions are in tension with Hume's separability principle, according to which distinctness, distinguishability, and separability are mutually entailing. I argue that Hume's discussion of rational distinction is a skeptical achievement: it is offered as a diagnosis of an illusion that leads us to suppose that distinctions betw…Read more
  •  278
    Body, Coherence, and Hume’s Galley
    Journal of the History of Philosophy. forthcoming.
    Section 1.4.2 of Hume’s Treatise offers both a constancy-based and coherence-based explanation of the belief in body. Why two explanations of the belief rather than one? Hume says that the mechanism of the coherence-based explanation is “too weak” to support “so vast an edifice” as the belief in body. I argue that this claim stems from his holding that the belief in body is irresistible, such that its denial can be sustained “in words only.” The constancy-based explanation is required in order t…Read more
  •  100
    We asked our readers to answer the question, in 250 words or fewer, "Of all the articles that have been published in Hume Studies over the past 50 years, which one is most noteworthy to you? Why so?" We realized that what is noteworthy to individual scholars will vary by their research interests and many other factors. Here are the responses we received, ordered by the date of the Hume Studies articles chosen, from earliest to most recent.Saul Traiger, "Impressions, Ideas, and Fictions," Hume St…Read more
  •  48
    Skepticism and the Idea of Body in Hume
    Journal of the History of Philosophy 63 (4): 571-594. 2025.
    In section 1.4.4 of the Treatise, “Of the modern philosophy,” Hume offers a skeptical argument concerning the distinction between primary and secondary qualities. The argument in that section is often understood to aim to undermine the modern philosophy’s account of body, according to which bodies lack paradigmatic secondary qualities, by showing that it has “extravagant” skeptical consequences. I argue that Hume does not reject the core commitments of the modern philosophy. His aim in T 1.4.4 i…Read more
  •  290
    Hume on Modal Projection
    Mind 133 (529): 167-195. 2024.
    Hume’s claim that we project necessity onto objects we take to be causally related has been influential in contemporary discussions of modality, inspiring deflationary accounts of our modal commitments. Hume is commonly understood as holding that modal projection explains our judging that an effect must follow its cause. This misunderstands the role of projection in Hume’s discussions of causation and causal judgement. Projection is a diagnosis of a distinctively philosophical confusion: the com…Read more
  •  304
    Fiction and Content in Hume’s Labyrinth
    Philosophical Quarterly 74 (1): 187-207. 2024.
    In the “Appendix” to the Treatise, Hume claims that he has discovered a “very considerable” mistake in his earlier discussion of the self. Hume's expression of the problem is notoriously opaque, leading to a vast scholarly debate as to exactly what problem he identified in his earlier account of the self. I propose a new solution to this interpretive puzzle. I argue that a tension generated by Hume's conceptual skepticism about real “principles of union” and his account of fictions of the imagi…Read more
  •  397
    Locke, Simplicity, and Extension
    Archiv für Geschichte der Philosophie 105 (2): 289-314. 2023.
    This paper aims to clarify Locke’s distinction between simple and complex ideas. I argue that Locke accepts what I call the “compositional criterion of simplicity.” According to this criterion, an idea is simple just in case it does not have another idea as a proper part. This criterion is prima facie inconsistent with Locke’s view that there are simple ideas of extension. This objection was presented to Locke by his French translator, Pierre Coste, on behalf of Jean Barbeyrac. Locke responded t…Read more
  •  958
    Leibniz and the Molyneux Problem
    Journal of Modern Philosophy 2 (1): 8. 2020.
    The Molyneux problem is one of the major questions addressed by early modern authors. Whereas Locke’s response to Molyneux’s question has been the subject of extensive scholarly discussion, Leibniz’s response has received comparatively little attention. This paper defends an interpretation of Leibniz’s nuanced response to the problem and criticizes a competing interpretation that has recently been proposed.
  •  176
    Rationalizing Socrates’ daimonion
    British Journal for the History of Philosophy 26 (2): 225-240. 2018.
    That Socrates took himself to possess a divine sign is well attested by ancient sources. Both Plato and Xenophon mention Socrates’ daimonion on numerous occasions. What is problematic for contemporary scholars is that Socrates unfailingly obeys the warnings of his sign. Scholars have worried that Socrates seems to ascribe greater epistemic authority to his sign than his own critical reasoning. Moreover, he never so much as questions the authority of his sign to guide his actions, much less its d…Read more