Locke has been accused of endorsing a theory of kinds that is inconsistent with his theory of individuation. This purported inconsistency comes to the fore in Locke’s treatment of cases involving organisms and the masses of matter that constitute them, for example, the case of a mass constituting an oak tree. In this essay, I argue that this purported problem, known as ‘The Kinds Problem’, can be solved. The Kinds Problem depends on the faulty assumption that nominal essences include only (...) features observable at a time t. Once this assumption is rejected, new candidates open up for the relevant difference in the world that is included in the nominal essence of e.g. mass but not oak tree. And I argue that there is at least one good candidate for the extrinsic feature observable only over time in which the mass differs from the oak it constitutes, namely its persistence conditions. The Kinds Problem can be solved. (shrink)

It is a well-worn, yet astonishingly resilient, cliché that the Enlightenment was the “Age of Reason”. By focusing on Diderot and Helvétius this paper shows that, rather than proceeding in the name of reason, key figures within the progressive philosophy of the French Enlightenment were in fact extremely suspicious of abstract reasoning and attempted to construct a philosophy which purged the faculty of reason entirely from its philosophical anthropology and reduced the mind’s functions to the single faculty of sensation and (...) so to the passions. It is in this sense that philosophy of the French Enlightenment attempted to produce a philosophy without reason. This paper reconstructs this attempt. In doing so it again engages critically with the idea that the philosophy of the Enlightenment was dogmatically rationalist, it provides a historical case study of a period in which philosophy pushed against the limits of its own identity, and it uses this attempt to reflect on the mythological not historiographical service which the cliché of Enlightenment Reason plays for the philosophical identity. (shrink)

John Locke discusses the notions of identity and diversity in Book 2, Chapter 27 of An Essay Concerning Human Understanding. At the beginning of this much-discussed chapter, Locke posits the place-time-kind principle. According to this principle, no two things of the same kind can be in the same place at the same time . Just what Locke means by this is unclear, however. So too is whether this principle causes problems for Locke, and whether these problems can be resolved. This (...) is significant because the place-time-kind principle is foundational to Locke's discussion of identity. Moreover, the place-time-kind principle stands at the center of a number of lively and long-standing debates in Locke scholarship. These include the debates over the ontological status of Lockean persons, and whether Locke is a relative identity theorist, to name just two. In this paper, I offer a survey of how Locke's place-time-kind principle has been interpreted in the secondary literature. The aim of this taxonomy is to clarify where the differences between competing interpretations lie, and additionally show just how challenging it is to determine which reading is best. (shrink)

In this paper, I will argue that Locke is a substance dualist in the general sense, in that he holds that there are, independent of our classificatory schema, two distinct kinds of substances: wholly material ones and wholly immaterial ones. On Locke’s view, the difference between the two lies in whether they are solid or not, thereby differentiating him from Descartes. My way of establishing Locke as a general substance dualist is to be as minimally committal as possible at the (...) outset, especially with respect to the classic debates on Locke’s positions in this domain, including those concerning substrata, real essences, and the like. Nonetheless, I show that minimal commitments about Locke’s primary/secondary quality distinction are sufficient to derive some substantive conclusions about his positions on these issues, as well as that he is a general substance dualist. (shrink)

This paper examines the significance and originality of Hobbes’s use of ‘mind’, rather than ‘soul’, in his writings on human nature. To this end, his terminology in the discussion of the ‘faculties of the mind’ in The Elements of Law, Natural and Politic (1640) is considered in the context of English-language accounts of the ‘faculties of the soul’ in three widely-read works from the first half of the seventeenth century: Thomas Wright’s The Passions of the Minde in Generall (1604), Robert (...) Burton’s The Anatomy of Melancholy (1621), and Edward Reynolds’s A Treatise of the Passions and Faculties of the Soule of Man (1640). For Hobbes’s contemporaries, man’s soul conveyed God-like powers to human beings; for Hobbes this is a dangerous idea. Accordingly, he establishes a sharp divide between ‘soul’ and ‘mind’, understanding the two terms to be concerned with two very different things: one with soteriology, the other with mental abilities. Like his contemporaries, Hobbes thought that understanding the faculties reveals the way to live a good life. But unlike them, his moral and political philosophy relies on citizens accepting that they are not like God, rather than looking to restore the ‘divine’ within themselves. (shrink)