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 claims that we have sensitive knowledge of the external world, in virtue of the fact that simple ideas are real, true, and adequate. However, despite his dismissive remarks about Cartesian external-world skepticism, Locke gives us little to go on as to how knowledge of the external world survives the fact of perceptual error, or even how perceptual error is possible. I argue that Locke has an in-principle problem explaining perceptual error.

Interpreters of Locke’s Essay are divided over whether to attribute to him a Representational Theory of Perception (RTP). Those who object to an RTP interpretation cite (among other things) Locke’s Book IV account of sensitive knowledge, contending that the account is incompatible with RTP. The aim of this paper is to rebut this kind of objection – to defend an RTP reading of the relevant Book IV passages. Specifically, I address four influential assumptions (about sensitive knowledge) cited by opponents of (...) an RTP interpretation and argue that in each case the assumption is false. (shrink)

What sort of property did Locke take colors to be? He is sometimes portrayed as holding that colors are wholly subjective. More often he is thought to identify colors with dispositions—powers that bodies have to produce certain ideas in us. Many interpreters find two or more incompatible strands in his account of color, and so are led to distinguish an “official,” prevailing view from the conflicting remarks into which he occasionally lapses. Many who see him as officially holding that colors (...) are dispositions concede that some of his remarks imply that colors are in us rather than in objects. After raising some difficulties for these readings, I offer an alternative. I will argue that Locke takes colors to be relational, but not dispositional, properties of the objects around us. On his view, an object is red if and only if it is actually causing a certain sensation in some observer. (shrink)

The internalism /externalism debate is of interest in epistemology since it addresses one of the most fundamental questions in the discipline: what is the basic nature of knowledge and epistemic justification? It is generally held that if a positive epistemic status obtains, this is not a brute fact. Rather if a belief is, for example, justified, it is justified in virtue of some further condition obtaining. What has been called epistemic internalism holds, as the label suggests, is that all the (...) relevant factors that determine justification must be “internal”. Epistemic externalism is the denial of internalism. Epistemic internalism about justification is the subject of this article. After introducing the central intuitive considerations that have tended to motivate internalism, this paper will explore different ways of construing the internalist position. In addition to classical formulations, more recent formulations will be discussed, concluding with a discussion of an emerging position known as “Epistemological Disjunctivism”, which its advocates claim preserves the most important features of more traditional forms of internalism, while avoiding their difficulties. Epistemological Disjunctivism is particularly worthy of attention since if true, it promises to bridge internalist and externalist epistemologies, bringing a rapprochement to two sides of what may otherwise appear a deep and intractable debate about the fundamental nature of epistemology. (shrink)

Annotation In this book Mr. Mackie selects for critical discussion six related topic which are prominent in John Locke's Essay concerning Human Understanding: ...

This book is available either individually, or as part of the specially-priced Arguments of the Philosphers Collection.

Locke asserts that “the Ideas of primary Qualities of Bodies, are Resemblances of them, and their Patterns do really exist in the Bodies themselves; But the Ideas, produced in us by these Secondary Qualities, have no resemblance of them at all.”1 On an unsophisticated way of taking his words, he means that ideas of primary qualities are like the qualities they represent and ideas of secondary qualities are unlike the qualities they represent.2 I will show that if we take his (...) assertions in this unsophisticated way, our reward will be a straightforward and satisfying interpretation of the central arguments of his chapter on primary and secondary qualities. With these arguments, Locke attempts to justify his assertions about resemblance. Some may be skeptical, thinking that the assertions, interpreted literally, are either too absurd or too obvious to have reasons supporting them. I take this skepticism to rest on deep foundations of charity, so half of the paper will be devoted to undermining these foundations by giving a sympathetic and historical exposition of Locke’s positive thesis that primary qualities resemble the ideas that represent them. I criticize rival interpretations of Lockean resemblance, say what it means to believe that ideas resemble qualities, explain the plausibility of the belief in Locke’s environment, and examine his descriptions of how ideas resemble particular primary qualities. Once I establish that we should take Locke’s resemblance theses literally, I can describe their place in his theory of representation. After that, I can describe his reasons for believing the resemblance theses. I will conclude by showing how Locke’s belief that ideas of secondary qualities do not resemble anything in bodies leads him to conclude that secondary qualities are merely powers to produce ideas. Let me begin near the end, however. Before defending a literal interpretation of the resemblance theses, I want to criticize three rival interpretations.. (shrink)

In this paper, I argue that Book II, Chapter viii of Locke' Essay is a unified, self-consistent whole, and that the appearance of inconsistency is due largely to anachronistic misreadings and misunderstandings. The key to the distinction between primary and secondary qualities is that the former are, while the latter are not, real properties, i.e., properties that exist in bodies independently of being perceived. Once the distinction is properly understood, it becomes clear that Locke's arguments for it are simple, valid (...) and (in one case) persuasive as well. (shrink)

John Locke is probably one of the highest-regarded English philosophers, and the first of the British empiricists. His ideas on the mind and consciousness have continued to resonate throughout philosophy and philosophical thought ever since An Essay Concerning Human Understanding first appeared in 1690. James Gibson's Locke's Theory of Knowledge and its Historical Relations was first published in 1917, and saw its fourth reprinting in 1968. Here, it is made available for the first time in paperback. This hugely detailed work (...) is an invaluable collation of Locke's theories, exploring his thoughts on the problems of knowledge, the formation of ideas, causality and the self. Furthermore, Gibson also provides an in-depth historical evaluation of the effects of these theories on contemporary philosophy as a whole, and on thinkers such as Descartes, Kant and Leibniz more specifically. As such, this book is a valuable reference work for any student of philosophy. (shrink)

Given his representationalism how can Locke claim we have sensitive knowledge of the external world? We can see the skeptic as asking two different questions: how we can know the existence of external things, or more specifically how we can know inferentially of the existence of external things. Locke's account of sensitive knowledge, a form of non-inferential knowledge, answers the first question. All we can achieve by inference is highly probable judgment. Because Locke's theory of knowledge includes both first order (...) psychological and second order normative conditions, sensitive knowledge can be non-inferential and less certain than intuitive and demonstrative knowledge. (shrink)

Locke Defines Knowledge at the beginning of Book IV of the Essay concerning Human Understanding as “the perception of the connexion and agreement, or disagreement and repugnancy of any of our Ideas” (E IV.i.2).1 So defined, knowledge varies along two dimensions. On the one hand, there are four “sorts” of knowledge: of identity or diversity; relation; co-existence or necessary connection; and real existence. On the other hand, there are three “degrees” of knowledge: intuitive knowledge, which consists in the “immediate” perception (...) of agreement or disagreement between ideas (E IV.ii.1); demonstrative knowledge, which consists in the perception of agreement or disagreement by way of intermediate (or intervening) .. (shrink)

Locke often writes that our knowledge is the perception of the agreement or disagreement of ideas. For example, he refers to “our Knowledge consisting in the perception of the Agreement, or Disagreement of any two Ideas” in the second chapter of the Essay's book on knowledge. Similarly, at the beginning of this book he characterizes knowledge as “the perception of the connexion and agreement, or disagreement and repugnancy of any of our Ideas”. Since commentators remark on this formula so frequently, (...) one would expect that major questions about its interpretation would have been settled long ago. But not so. Controversy still prevails about Locke's intent, and especially about his assumption that the knowledge of the existence of real things counts as an instance of the perception of the agreement or disagreement of ideas.Scholars have put forward two sorts of problems about the attempted assimilation of knowledge of real existence to Locke's formula. (shrink)

This is a review of Roger Woolhouse's biography of Locke.

This article surveys work in epistemology since the mid-1980s. It focuses on contextualism about knowledge attributions, modest forms of foundationalism, and the internalism/externalism debate and its connections to the ethics of belief.

This volume is the first of three which will contain all of Locke's extant writings on philosophy which relate to An Essay Concerning Human Understanding, other than those contained in volumes of the Clarendon Edition of John Locke such as the Correspondence. The book contains the two earliest known drafts of the Essay, both written in 1671, and provides for the first time an accurate version of Locke's text together with a record of virtually all his changes, in notes at (...) the foot of each page. (shrink)

This book is a general introduction to the philosophy of John Locke, one of the most influential thinkers in modern times. Nicholas Jolley aims to show the fundamental unity of Locke's thought in his masterpiece, the Essay Concerning Human Understanding. In this work Locke advances a coherent theory of knowledge; as against Descartes he argues that knowledge is possible to the extent that it concerns essences which are constructions of the human mind.

Many critics of Locke have worried that restricting knowledge to relationships among ideas would bar knowledge from extending to the outer reality which "corresponds to" these ideas. The question of how well Locke can answer such concerns leads us into a number of peculiar and intriguing passages on knowledge and the relationships between perception, reality, pain, and pleasure. This chapter examines what John Locke has to say about sensitive knowledge, to investigate several ways in which his remarks on this topic (...) can be reconciled with what he says elsewhere. It also talks about the idea of sensation, and assesses the merits of Locke's conception of sensitive knowledge both as a response to skepticism and as a part of the larger picture of human understanding painted in the Essay. Two passages in the Essay describe sensitive knowledge in some detail, both beginning with a description of the skeptical problem. (shrink)

In a focused assessment of one of the founding members of the liberal tradition in philosophy and a self-proclaimed “Under-Labourer” working to support the scientific revolution of the seventeenth century, the author maps the full range of John Locke’s highly influential ideas, which even today remain at the heart of debates about the nature of reality and our knowledge of it, as well as our moral and political rights and duties. Comprehensive introduction to the full range of Locke’s ideas, providing (...) an up-to-date account that acknowledges issues raised by recent scholarship over the past decade A well-rounded perspective on one of the intellectual giants of the western philosophical tradition Provides detailed coverage of Locke’s two key works, _An Essay Concerning Human Understanding_ and _The Two Treatises of Government_. A sophisticated analysis by a highly respected academic A vital addition to the _Blackwell_ _Great Minds_ series. (shrink)

The Essay Concerning Human Understanding is John Locke's most important work, and through this selective commentary, first published in 1970, Professor Yolton concentrates our attention on the more interesting and controversial of the doctrines in it. His method of interpretation is to ask very specific questions of the text in order to test the propriety of the philosophical labels traditionally applied to Locke, an approach which he believes yields surprising results. He looks afresh at the various discussions of essence, perception, (...) scientific method, ethics and meaning, and argues that throughout his epistemology Locke is more concerned with problems of description and analysis than with those of justification. This historical perspective is extended by the discussion of issues in the Essay, which retain an independent and philosophical interest. (shrink)

This paper argues that Locke has a representative theory of sensitive knowledge. Perceivers are immediately aware of nothing but sensory ideas in the mind; yet perceivers think of real external substances that correspond to and cause those ideas, and they are warranted in believing that those substances exist (at that time). The theory poses two questions: what warrants the truth of such beliefs? What is it in virtue of which sensory ideas represent external objects and how do they make perceivers (...) think of those objects? Both the epistemic and semantic issues need to be addressed. This paper urges that Locke's basic account of warrant is roughly reliabilist. The causal origin of sensory ideas assures that, in general, sense based beliefs are true. Locke defines the limit of this warrant by the theoretical point that we cannot discuss skeptical doubt without assuming the truthfulness of our perceptual faculty. Turning to the semantic question, the paper argues that ideas are mental modifications or entities. They are not intrinsically representative (satisfiable), but rather represent only by virtue of their causal origin. They merely “track” the presence of substances and their qualities. Ideas nevertheless prompt perceivers to think of their causes. This is roughly because sensory ideas have a specific mental role, namely, to serve as marks for distinguishing substances and their respective qualities for purposes of action. The paper suggests that, for Locke, the challenge posed by the semantic veil of ideas is to explain this externally directed marking function within bounds of his anti‐innatism. But it concludes that his answers to the twin questions fit together reasonably well. (shrink)