Locke: Identity

This essay examines Locke’s chapter “Of Identity and Diversity” (Essay 2.27) in the context of the series of chapters on ideas of relations (Essay 2.25–28) that precede and follow it. I begin by introducing Locke’s account of how we acquire ideas of relations. Next, I consider Locke’s general approach to individuation and identity over time before I show how he applies his general account of identity over time to persons and personal identity. I draw attention to Locke’s claim that “person” (...) is a forensic term and analyse his arguments for why the sameness of a human being and the sameness of a substance or soul are neither necessary nor sufficient for personal identity. Instead, Locke argues that personal identity consists in sameness of consciousness. Locke regards persons as moral agents who are accountable for their actions. If a person now is held accountable for a past action it is important that the person now is the same person as the person who did the action. This means that moral accountability presupposes personal identity. Additionally, it will be important to consider whether the person deserves reward or punishment for the action. Locke’s account of moral relations, which he develops in Essay 2.28, addresses this issue and I show how it supplements his account of persons and personal identity. (shrink)

A review of Ruth Boeker's recent book Locke on Persons and Personal Identity (Oxford: Oxford University Press, 2001).

En Ángel e infancia se presenta la tesis según la cual el Ensayo acerca del entendimiento humano del inglés John Locke defiende una visión de la persona que es el resultado de una ruptura imposible de concluir y, por lo tanto, saturada de tensiones con “la lengua materna”, con lo animal, la infancia y las “anomalías” humanas. El Ensayo presenta, dentro de su teoría de la personalidad, una comprensión de “lo femenino” que permite establecer una polaridad: lo personal es el (...) polo en el que se concentran, en contradicción con “lo femenino” o “maternal”, las virtudes necesarias para la vida común. -/- También, en este libro se realiza una detallada explicación de la crítica lockeana del lenguaje teológico, la cual está relacionada con su ruptura con la lengua femenina, con el consecuente abandono de la infancia y la superación de la animalidad. La persona es, según esto, quien rompe con los límites de todo lo que se estima bajo o terrenal y se eleva sobre el polvo sin llegar, eso sí, a ser igual a un ángel. Con todo, Locke reconoce una serie de “debilidades” de la personalidad que permiten concluir que un viviente humano es, con dificultades, solo en ocasiones también una persona. Tal discontinuidad hace que la persona sea episódica, voluble y carente de un fundamento sólido. La vida personal está dañada desde dentro y, pese a ello, la filosofía lockeana considera que solo dentro de una comunidad de personas es posible el placer y la justicia. La asociación básica de la filosofía de la persona es entre responsabilidad (forense) y personalidad, pero, una y otra vez, el Ensayo deja ver, pese a que no sea tal su propósito, el desfondamiento de lo personal. (shrink)

According to Locke, scripture says nothing about the resurrection of the same body. We will be resurrected. But in what sense can resurrected Jane be the “same” as living Jane? Throughout his thinking, Locke holds that sameness of body and/or sameness of soul are not required for the resurrection of “the same Jane.” Sameness of person is required. Locke’s theory of personal identity was ground-breaking in the seventeenth and eighteenth centuries. It was provoking and resulted in a wave of critical (...) responses. His distinction between “man” and “person” is important for his account of personal identity, but the distinction was hard for his contemporaries to understand. The correspondence between Locke and Edward Stillingfleet, for example, shows that for Stillingfleet the distinction between “man” and “person” is artificial. Having read this correspondence, Winch Holdsworth attacks Locke in a sermon in 1719 arguing that Locke denied the resurrection altogether. Catharine Trotter Cockburn tries to defend Locke in her Vindication. Despite her clear understanding of the distinctions applied by Locke, she too struggles with what to make of a person. (shrink)

According to Ruth Boeker, her account is unusual in "distinguishing Locke's account of personhood from his account of personal identity," which allows her to make sense of "both his claim that 'person' is a forensic term and his claim that personal identity consists in the same consciousness". In her emphasis on the connection between personhood and responsibility, Boeker's position is like the one advanced in Galen Strawson's recent book, but where Strawson emphasizes the connection between personality and responsibility in this (...) life, Boeker emphasizes it in the life to come. According to her... (shrink)

John Locke is one of the key figures in the history of early modern philosophy. He had a great influence on the development of philosophy, which is based on the empirical method, and on the political systems of countries. And even though his works have not been deprived of attention, some questions of his philosophy remain insufficiently disclosed. The author's deals with the religious turn in studies of John Loke. Attention is paid to the role of religion in the philosophy (...) of the thinker. The issue of religious influences on the issue of identity is being discussed. The essence of the term “modern” is highlighted and the criteria according to which John Locke's ideas should be considered modern are indicated. The author notes that some researchers considered John Locke one of the founders of modern philosophy, while others believed that the role of the English philosopher in the development of modern philosophy was overestimated. A characteristic feature of modern philosophy is the emphasis on research and exploration. The author names the identity of John Locke a subjective identity. The main attributes of identity are: reflection, consciousness and memory. Self-reflection and meaningful self-perception allows each person to choose their own way of worshiping God. Consciousness allows a person to evaluate his actions, forms an idea of morality, the concept of sin and so on. The article deals with different meanings of the concept of identity in the religious and secular aspects. The difference - is in memory. Personal responsibility is an integral part of identity. The author of the article notes that we should make a difference between responsibility in religious and political field. Religious responsibility requires observance not only of legal law, but also of moral rules and biblical commandments. (shrink)

Book review/ Reseña del libro: Carmen Silva, "De la filosofía natural a la psicología de la moral en el Ensayo sobre el entendimiento humano de John Locke". Ciudad de México: Universidad Autónoma de la Ciudad de México–Universidad Autónoma de Aguascalientes, 2021, 231pp.

A short overview of the theories of Individuality in early modern philosophy.

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)

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)

William Molyneux (1656–1698) was an Irish experimental philosopher and politician, who played a major role in the intellectual life in seventeenth-century Dublin. He became Locke’s friend and correspondent in 1692 and was probably Locke’s philosophically most significant correspondent. Locke approached Molyneux for advice for revising his Essay concerning Human Understanding as he was preparing the second and subsequent editions. Locke made several changes in response to Molyneux’s suggestions; they include major revisions of the chapter ‘Of Power’ (2.21), the addition of (...) the chapter ‘Of Identity and Diversity’ (2.27), and the addition of the so-called Molyneux Problem (2.9.8). Molyneux repeatedly requested that Locke develops his views on morality. Additionally, their correspondence turned to questions concerning education and Molyneux’s keen interest in the topic likely prompted Locke to publish Some Thoughts Concerning Education in 1693. Moreover, Molyneux drew on Locke’s anonymously published Two Treatises of Government in his The Case of Ireland’s Being Bound by Acts of Parliament in England, Stated, which was first published in the spring of 1698. Molyneux revealed Locke’s authorship of Two Treatises against Locke’s will, yet their friendship continued until Molyneux’s untimely death in October 1698. (shrink)

When does a human being cease to exist? For millennia, the answer to this question had remained largely unchanged: death had been diagnosed when heartbeat and breathing were permanently absent. Only comparatively recently, in the 1950s, rapid developments in intensive-care medicine called into question this widely accepted criterion. What had previously been deemed a permanent cessation of vital functions suddenly became reversible. -/- A new criterion of death was needed. It was suggested that the destruction of the brain could indicate (...) the death of the organism in the presence of external life support. Soon the so-called brain death became the new worldwide standard. In recent years, however, doubts about this neurological criterion have been growing. Is brain death really our death? -/- This is the question that this thesis seeks to answer. To this end, we shall connect the medical debate about the definition of death to the philosophical debate about personal identity. While we will find that the destruction of its brain does in fact not correspond to an organism’s death, we shall also ask whether the assumption that we are essentially organisms is correct. May brain death be the ceasing to exist of a different entity? -/- Substituting clinical case reports and considerations about human physiology for the use of thought experiments, the thesis takes a novel and philosophically unconventional approach to the problem of what we essentially are. We shall analyse various pathological conditions and their respective effects on the bodily and mental characteristics of our existence. We will conclude that brain death is indeed our death – but for reasons entirely different from those cited in the original justification of this criterion. (shrink)

In this monograph I propose to interpret John Locke's view of central metaphysical notions such as substance, essence and identity to the backdrop of his distinction between distinct and confused ideas. I show that Locke draws this traditional distinction in a novel way—as a distinction pertaining only to the way ideas are related to our use of language. This distinction, I argue, allows him to radically rethink traditional questions of metaphysics and to mount a linguistic criticism of traditional metaphysical views (...) about substance, essence and identity. Furthermore, I propose that taking into account the linguistic dimension of Locke's metaphysical thought helps recognize the coherence of his overall picture of substance, essence and identity. (shrink)

Catharine Trotter Cockburn (1679- 1749) fu poetessa, drammaturga e filosofa. La vivacità intellettuale e la forte determinazione le permisero di aggirare il pregiudizio di genere e di sottrarsi alle dinamiche di marginalizzazione femminile tipiche dell’età moderna. Pur celandosi dietro l’anonimato, Cockburn prese parte attiva al dibattito filosofico del tempo, intervenendo soprattutto in materia di morale. Le sue opere filosofiche, scritte in difesa di Locke o di Clarke, custodiscono, nonostante il dichiarato intento apologetico, tratti di originalità e indipendenza, particolarmente evidenti nella (...) teoria dell’obbligo morale, nell’interpretazione modale della dottrina lockeana d’identità personale, nell’ipotesi di una natura ontologica dello spazio. (shrink)

Shelley Weinberg’s Consciousness in Locke builds on her previous journal articles and makes significant contributions to John Locke scholarship by offering the first systematic study of consciousness throughout Locke’s Essay. According to Weinberg, consciousness for Locke is self-referential, non-evaluative awareness internal to every thought or perception. She argues that once we realize the complexity of any perception—namely that every perception involves, “at the very least, an act of perception, an idea perceived, and consciousness ” —we can see that Locke’s conception (...) of consciousness connects important themes in his philosophical psychology, namely his theory of... (shrink)

john locke argues that personal identity consists in sameness of consciousness, and he maintains that any other theory of personal identity would lead to "great Absurdities".1 This statement intimates that Locke thought carefully about alternative conceptions of personal identity and their problems. In this paper, I argue that, by understanding Locke's account of personal identity in the context of metaphysical and religious debates of his time, especially debates concerning the afterlife and the state of the soul between death and resurrection, (...) we can reveal the strengths of his view and show how his account of personal identity in terms of sameness of consciousness has the resources to avoid... (shrink)

According to Locke, appropriation is a precondition for moral responsibility and thus we can expect that it plays a distinctive role in his theory. Yet it is rare to find an interpretation of Locke’s account of appropriation that does not associate it with serious problems. To make room for a more satisfying understanding of Locke’s account of appropriation we have to analyse why it was so widely misunderstood. The aim of this paper is fourfold: First, I will show that Mackie’s (...) and Winkler’s interpretations that have shaped the subsequent discussion contain serious flaws. Second, I will argue that the so-called appropriation interpretation —that is the view that appropriation is meant to provide alternative persistence conditions for persons—lacks support. Third, I will re-examine Locke’s texts and argue that we can come to a better understanding of his notion of appropriation in the Essay if we interpret it in analogy to his account of appropriation in Two Treatises. Fourth, I will offer a more fine-grained interpretation of the role of appropriation in relation to persistence conditions for persons. I conclude by showing that the advantage of this proposal is that it reconciles interpretations that have commonly been thought to be inconsistent. (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)

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)

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)

Locke and Leibniz on Substance gathers together papers by an international group of academic experts, examining the metaphysical concept of substance in the writings of these two towering philosophers of the early modern period. Each of these newly-commissioned essays considers important interpretative issues concerning the role that the notion of substance plays in the work of Locke and Leibniz, and its intersection with other key issues, such as personal identity. Contributors also consider the relationship between the two philosophers and contemporaries (...) such as Descartes and Hume. (shrink)

I offer an interpretation of John Locke’s account of persons and personal identity that gives full credit to Locke’s claim that “person” is a forensic term, sheds new light on the relation between Locke’s characterizations of a person in sections 9 and 26, and explains how Locke links his moral and legal account of personhood to his account of personal identity in terms of sameness of consciousness. I show that Locke’s claim that sameness of consciousness is necessary for personal identity (...) depends on two components: first, his particular moral and legal conception of a person and, second, his particular understanding of the conditions of just accountability for past actions. Had Locke given a different account of personhood, or thought differently about the conditions of just accountability, he might have given a nonpsychological account of personal identity. (shrink)

John Locke offered a very rich and influential account of persons and personal identity in “Of Identity and Diversity,” which is chapter 27 of Book 2 of his An Essay concerning Human Understanding. He added it to the second edition in 1694 upon the recommendation of his friend William Molyneux. Locke’s theory was soon after its publication discussed by his contemporaries and has influenced many present-day discussions of personal identity. Distinctive about Locke’s theory is that he argues that the notion (...) of a person is to be distinguished from that of a human organism, or “man” to use Locke’s term, and that of a substance. By distinguishing the notion of a person from the more traditional notions of a human organism and a substance, Locke is able to address moral questions of accountability without having to take a stance on the question of whether the underlying ontological constitution of a person is material or immaterial. The chapter can be divided into two parts: in the first he outlines his general account of identity, and in the second he applies his general account of identity to persons and personal identity. The discussion of Locke’s general account of identity in the secondary literature has focused on whether Locke’s account of identity can be regarded as a version of the thesis that identity is relative and on how Locke understands modes and substances in chapter 27. The secondary literature on Locke’s account of persons and personal identity often focuses on how Locke’s claim that personal identity consists in sameness of consciousness is to be understood. However, some interpreters also draw attention to the importance of the moral and legal dimension which Locke makes explicit in his claim that “person” is a forensic term (II.xxvii.26). Moreover, some scholars have argued that Locke’s theory is to be understood in its religious context. The objections which have repeatedly been raised against Locke include the problem of circularity and the problem of transitivity; Locke’s reference to “fatal error” in II.xxvii.13 has also been regarded as a serious problem for his view. In the 20th century, psychological accounts of personal identity were often called neo-Lockean theories. It is controversial whether neo-Lockean theories differ from Locke’s own theory, and it can be asked whether the moral and religious dimension of Locke’s theory constitutes an important difference. (shrink)

This article discusses Galen Strawson's Locke on Personal Identity: Consciousness and Concernment, and Udo Thiel's The Early Modern Subject.

Matthew Stuart offers a fresh interpretation of John Locke's Essay Concerning Human Understanding, arguing for the work's profound contribution to metaphysics. He presents new readings of Locke's accounts of personal identity and the primary/secondary quality distinction, and explores Locke's case against materialism and his philosophy of action.

Locke’s theory of personal identity was philosophically groundbreaking for its attempt to establish a non-substantial identity condition. Locke states, “For the same consciousness being preserv’d, whether in the same or different Substances, the personal Identity is preserv’d” (II.xxvii.13). Many have interpreted Locke to think that consciousness identifies a self both synchronically and diachronically by attributing thoughts and actions to a self. Thus, many have attributed to Locke either a memory theory or an appropriation theory of personal identity. But the former (...) stumble on circularity and the latter is insufficient for Locke’s moral theory insofar as he is committed to a theory of divine rectification. The common problem is that Locke’s theory seems to demand an objective, or metaphysical, fact of a continuing consciousness that does not appeal to a traditional notion of substance for the continuity. I’m suggesting something new. In II.xxvii of the Essay, we see an ambiguity in Locke’s use of the term ‘consciousness’. Locke seems to see consciousness as both a mental state by means of which we are aware of ourselves as perceiving and as the ongoing self we are aware of in these conscious states. First, I make the textual argument why we should read Locke as having a conception of a metaphysical fact of a continuing consciousness that does not appeal to thinking or bodily substance to establish its continuity. I then argue that the metaphysical fact of an enduring consciousness is revealed to us as a phenomenological fact of experience. Due to the nature of certain kinds of perceptual situations we have an experience of ourselves as temporally extended. Although the text bears out that Locke seemed to think there is a fact of an ongoing consciousness, I argue that it is consistent with his reluctance elsewhere that he makes no further epistemological or ontological claims about it. Finally, I provide an account of Locke’s understanding of memory and its relation to consciousness that supports the claim that consciousness is something ontologically distinct from either thinking or bodily substance. (shrink)

In line with the empiricist project, Locke tries to describe how unconscious encounters with environment yield to the emergence of consciousness. For Locke the self is identical with consciousness and consciousness is accessible empirically. As far as the identity of human is concerned, identity of the self depends on the consciousness of the person. The person is identical to himself to the extent that he is aware of his own perceptions and thinking. The range of the person’s memory sets the (...) limits of consciousness. According to Locke, consciousness is an element that accompanies all acts of thinking including act of recollection. Such accompanying consciousness constitutes the form of the identity of the self, whereas memory-ideas may be considered the content of consciousness. Therefore, it is this formal constitutive element that provides constancy of the idea of the self. If so, then it can be claimed that Locke’s approach to the question of the self results in admitting the truth of what he intends to reject and it is self-defeating; this is to say that, Locke’s methodology pushes him to adopt a Platonic-Aristotelian formal theory of identity in general and of personal identity in particular. (shrink)

According to Locke’s Principle, material objects are identical if and only if they are of the same kind and once occupy the same place at the same time. There is disagreement about whether this principle is true, but what is seldom disputed is that, even if true, the principle fails to constitute an applicable criterion of identity. In this paper, I take issue with two arguments that have been offered in support of this claim by arguing (i) that we can (...) have knowledge of past whereabouts, and so verify the right hand side of Locke’s Principle, without having to assess concrete identity claims first; (ii) that even under conditions of incomplete knowledge of past whereabouts we can use Locke’s Principle to decide concrete identity problems. (shrink)

This book argues that in fact it is Locke 's critics who are wrong, and that the famous objections to his theory are invalid.

British Journal for the History of Philosophy, Volume 19, Issue 4, Page 826-830, July 2011.

Explores the understanding of self-consciousness and personal identity - two fundamendtal features of human subjectivity - as it developed in early modern philosophy. Udo Thiel presents a critical evaluation of these features as they were conceived in the sevententh and eighteenth centuries. He explains the arguments of thinkers such as Descartes, Locke, Leibniz, Wolff, and Hume, as well as their early critics, followers, and other philosophical contemporaries, and situates them within their historical contexts. Interest in the issues of self-consciousness and (...) personal identity is in many ways characteristic [of] and even central to early modern thought, but Thiel argues here that this is also an interest that continues to this day, in a form still strongly influenced by the conceptual frameworks of early modern thought. In this book he attempts to broaden the scope of the treatment of these issues considerably, covering more than a hundred years of philosophical debate in France, Britain, and Germany while remaining attentive to the details of the arguments under scrutiny and discussing alternative interpretations in many cases"--Publisher's description, p. [4] of dust jacket. (shrink)

Locke’s account of personal identity has been highly influential because of its emphasis on a psychological criterion. The same consciousness is required for being the same person. It is not so clear, however, exactly what Locke meant by ‘consciousness’ or by ‘having the same consciousness’. Interpretations vary: consciousness is seen as identical to memory, as identical to a first personal appropriation of mental states, and as identical to a first personal distinctive experience of the qualitative features of one’s own thinking. (...) There is wide agreement, however, that Locke’s theory of personal identity is meant to complement his moral and theological commitments to a system of divine punishment and reward in an afterlife. But these commitments seem to require also a metaphysical criterion, and Locke is insistent that it cannot be substance. The difficulty reconciling the psychological and metaphysical requirements of the theory has led, at worst, to charges of incoherence and, at best, to a slew of interpretations, none of which is widely accepted. (shrink)

Introduction -- John Locke and the problem of personal identity : the principium individuationis, personal immortality, and bodily resurrection -- On separation and immortality : Descartes and the nature of the soul -- On materialism and immortality or Hobbes' rejection of the natural argument for the immortality of the soul -- Henry More and John Locke on the dangers of materialism : immateriality, immortality, immorality, and identity -- Robert Boyle : on seeds, cannibalism, and the resurrection of the body -- (...) Locke's theory of personal identity in its context : a reassessment of classic objections. (shrink)

John Locke’s account of personal identity is usually thought to have been proved false by Thomas Reid’s simple ‘Gallant Officer’ argument. Locke is traditionally interpreted as holding that your having memories of a past person’s thoughts or actions is necessary and sufficient for your being identical to that person. This paper argues that the traditional memory interpretation of Locke’s account is mistaken and defends a memory continuity view according to which a sequence of overlapping memories is necessary and sufficient for (...) personal identity. On this view Locke is not vulnerable to the Gallant Officer argument. (shrink)

This paper gives three arguments for why Lockean persons must be modes rather than substances.

The correspondence between Samuel Clarke and Anthony Collins of 1706–8, while not well known, is a spectacularly good debate between a dualist and a materialist over the possibility of giving a materialist account of consciousness and personal identity. This article puts the Clarke Collins Correspondence in a broader context in which it can be better appreciated, noting that it is really a debate between John Locke and Anthony Collins on one hand, and Samuel Clarke and Joseph Butler on the other. (...) Anthony Collins argues on behalf of John Locke's claim that it would be as easy for God to superadd the power of thinking to matter as for him to connect a soul to a body. Locke did not believe that matter could naturally produce thought or consciousness, but it was in God's power to make matter think. To defend Locke's claim Collins must defend the claim that there are emergent properties in the world – properties of a whole that are not possessed by the parts. Collins also defends a materialist version of Locke's account of personal identity against a variety of charges. Because the topics of debate in the correspondence are of such great interest to us, it deserves to be rescued from the neglect into which it fell and from which intellectual historians and philosophers have only recently and partially removed it. (shrink)