John Locke's account of personal identity is one of his most discussed theories. Opposing the Cartesian ontology of mind, Locke argued that the soul does not always think - for thinking is simply one of its operations, but not its essence -, and that personal identity consists in consciousness alone. Against Locke, an anonymous commentator published the Remarks upon an Essay concerning Humane Understanding charging Locke's view with possible immorality. Catharine Cockburn rebuffed the Remarker's objections, in her Defence of Mr. (...) Locke's Essay, depicting his view as more dangerous for morality than Locke's. This paper shifts the focus from Cockburn's defence of Locke's moral thought, to her apology for his theory of personal identity, including his probabilistic arguments in favour of the immortality of the soul. This shift of focus yields an alternative account of Cockburn's originality: first, because she offered a non-substance interpretation of Locke's theory of personal identity, that, for its time, was unusual, and remains relevant for contemporary philosophical debates over Locke; and second, because, following Kristeller, in the very act of defending and articulating anew Locke's theory, Cockburn in some sense appropriated it. (shrink)

Ruth Boeker offers a new perspective on Locke’s account of persons and personal identity by considering it within the context of his broader philosophical project and the philosophical debates of his day. Her interpretation emphasizes the importance of the moral and religious dimensions of his view. By taking seriously Locke’s general approach to questions of identity, Boeker shows that we should consider his account of personhood separately from his account of personal identity over time. On this basis, she argues that (...) Locke endorses a moral account of personhood, according to which persons are subjects of accountability, and that his particular thinking about moral accountability explains why he regards sameness of consciousness as necessary for personal identity over time. In contrast to some Neo-Lockean views about personal identity, Boeker argues that Locke’s account of personal identity is not psychological per se, but rather his underlying moral, religious, metaphysical, and epistemic background beliefs are relevant for understanding why he argues for a consciousness-based account of personal identity. Taking his underlying background beliefs into consideration not only sheds light on why many of his early critics do not adopt Locke’s view, but also shows why his view cannot be as easily dismissed as some of his critics assume. -/- . (shrink)

John Locke accepts that every perception gives me immediate and intuitive knowledge of my own existence. However, this knowledge is limited to the present moment when I have the perception. If I want to understand the necessary and sufficient conditions of my continued existence over time, Locke argues that it is important to clarify what ‘I’ refers to. While we often do not distinguish the concept of a person from that of a human being in ordinary language, Locke emphasizes that (...) this distinction is important if we want to engage with questions of identity over time. According to Locke, persons are thinking intelligent beings who can consider themselves as extended into the past and future and who are concerned for their happiness and accountable for their actions. Moreover, for Locke a self is a person, considered from a first-personal point of view. I show that the concept of self that he develops in the context of his discussion of persons and personal identity is richer and more complex than the I-concept that he invokes in his version of the cogito. I further argue that Locke’s moral and religious views explain why he emphasizes the need for a conceptual distinction between persons and human beings. In the final section I turn to the reception of Locke’s view by some of his early critics and defenders, including Elizabeth Berkeley Burnet, an anonymous author, and Catharine Trotter Cockburn. (shrink)

Locke’s commentators are divided about whether Locke thinks that the idea of a person is a substance-idea or a mode-idea. I use Locke’s theory of kinds to argue for an intermediate interpretation on which the idea of a person is a substance-idea that contains a mode-idea. As a result, while proponents of the substance interpretation correctly claim that ‘person’ designates a kind of substance, proponents of the mode interpretation are nonetheless correct in insisting that mode-ideas play an important role in (...) Locke’s account of persons and personal identity. (shrink)

In the thesis I offer an analysis of the metaphysical underpinnings of the extended cognition thesis via an examination of standard views of metaphysical building (or, dependence) relations. -/- In summary form, the extended cognition thesis is a view put forth in naturalistic philosophy of mind stating that the physical basis of cognitive processes and cognitive processing may, in the right circumstances, be distributed across neural, bodily, and environmental vehicles. As such, the extended cognition thesis breaks substantially with the still (...) widely held view in cognitive science and philosophy of mind, namely that cognitive processes and cognitive processing take place within the skin-and-skull of individual organisms. The standard view of metaphysical building relations can be expressed as the conjunction of two theses. First, that a metaphysical building relation – such as composition, constitution, realization, supervenience or emergence – is a relation of ontological dependence, because if a metaphysical building relation holds between X (or the Xs) and Y, then it is in virtue of X (or the Xs) that Y exists. Second, metaphysical building relations are synchronic (durationless) relations of ontological dependence. In the thesis, I propose an alternative diachronic framework by which to extend the standard synchronic accounts of metaphysical dependence relations, and by which to reformulate the metaphysical foundation of the extended cognition thesis. The project fills an important gap between analytical metaphysics (in particular, the metaphysics of dependence relations) and naturalistic philosophy of mind (especially the extended cognition thesis). To my knowledge there has been no attempt to establish a robust diachronic account of metaphysical building (or, dependence) relations such as, e.g., composition and constitution. However, this is precisely what I argue is required to properly advance and ground the metaphysics of extended cognition. Ultimately, my aim of reformulating the metaphysics of extended cognition consists in taking several steps toward a third-wave of extended cognition. (shrink)

Hume’s theory of personal identity is developed in response to Locke’s account of personal identity. Yet it is striking that Hume does not emphasize Locke’s distinction between persons and human beings. It seems even more striking that Hume’s account of the self in Books 2 and 3 of the Treatise has less scope for distinguishing persons from human beings than his account in Book 1. This is puzzling, because Locke originally introduced the distinction in order to answer questions of moral (...) accountability and Hume’s discussion of the self in Book 2 provides the foundation of his moral theory in Book 3. In response to the puzzle I show that Locke and Hume hold different moral and religious views and these differences are important to explain why their theories of personal identity differ. (shrink)

I argue that a form of animalism that does not include the belief that ‘human animal’ is a substance-sortal has a dialectical advantage over other versions of animalism. The main reason for this advantage is that Phase Animalism, the version of animalism described here, has the theoretical resources to provide convincing descriptions of the outcomes of scenarios problematic for other forms of animalism. Although Phase Animalism rejects the claim that ‘human animal’ is a substance-sortal, it is still appealing to those (...) who believe that our nature is continuous or of a similar kind to that of other physical entities. (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)

The importance of John Locke's discussion of persons is undeniable. Locke never explicitly tells us whether he thinks persons are substances or modes, however. We are thus left in the dark about a fundamental aspect of Locke's view. Many commentators have recently claimed that Lockean persons are modes. In this paper I swim against the current tide in the secondary literature and argue that Lockean persons are substances. Specifically I argue that what Locke says about substance, power, and agency commits (...) him to the claim that persons are substances. I consider the passages mode interpreters cite and show why these passages do not imply that Lockean persons are modes. I also respond to two objections anyone who thinks Lockean persons are substances must address. I show that a substance reading of Locke on persons can be sympathetic and viable. I contend that with a clearer understanding of the ontological status of Lockean persons we can gain a firmer grasp of what Locke's picture of persons looks like. Finally, once we are armed with a better understanding of Locke on substance, mode, and personhood, we can pave the way toward a more nuanced description of the early modern debate over personal identity. (shrink)

Studies in the History and Philosophy of Science, 34A (2003): 329-50.

Relations are things that depend for their existence on more than one substance. This conception of relation is coherent as far as it goes, and fits well with John Locke's conception of entities as divided into the general categories of substance, mode, and relation. Locke's conception of the nature of causation is not well developed, but anticipates the far more influential conception articulated by his intellectual successor, David Hume. Far more interesting, from the point of view of later philosophical developments, (...) are Locke's views on the nature of identity and diversity, and on the nature of moral relations. Locke briefly outlines four categories of relations, with special attention to moral relations (the other three being proportional relations, natural relations and instituted relations). It is worth noticing that Locke's theory of morality is firmly ensconced in the natural law tradition. (shrink)

In this article I argue that the mechanical inexplicability of natural ends in the third Critique is best understood against the background of a fairly traditional picture of the metaphysics of living things, one embraced by Kant himself. On this picture, the distinctive unity of a living thing was to be explained by a soul, form, or monad. The constraints placed on the understanding in the first Critique, however, make such an explanation impossible: because the principle of a living thing (...) in virtue of which it constitutes a whole—rather than a mere aggregate of things—is simple, it cannot be met with in space. By ruling out a widely accepted explanans for a well-recognized explanandum, in other words, Kant’s first Critique makes living things inexplicable in precisely those ways suggested by the third. (shrink)

We run into instances of material constitution everywhere we turn. Material constitution is the relation that obtains between an octagonal piece of metal and a Stop sign, between strands of DNA molecules and genes, between pieces of paper and dollar bills, between stones and monuments, between lumps of clay and statues, between human persons and their bodies—the list is endless. Although there has been a great deal of controversy recently about the nature of material constitution, I want to enter the (...) fray by setting out and defending an explicit definition of what it is for an object x to constitute an object y at time t. (shrink)