Christopher Hill

In the first chapter of his Knowledge and Lotteries, John Hawthorne argues that thinkers do not ordinarily know lottery propositions. His arguments depend on claims about the intimate connections between knowledge and assertion, epistemic possibility, practical reasoning, and theoretical reasoning. In this paper, we cast doubt on the proposed connections. We also put forward an alternative picture of belief and reasoning. In particular, we argue that assertion is governed by a Gricean constraint that makes no reference to knowledge, and that practical reasoning has more to do with rational degrees of belief than with states of knowledge.

This is a book about sensory states and their apparent characteristics. It confronts a whole series of metaphysical and epistemological questions and presents an argument for type materialism: the view that sensory states are identical with the neural states with which they are correlated. According to type materialism, sensations are only possessed by human beings and members of related biological species; silicon-based androids cannot have sensations. The author rebuts several other rival theories, and explores a number of important issues: the forms and limits of introspective awareness of sensations, the semantic properties of sensory concepts, knowledge of other minds, and unity of consciousness. The book is a significant contribution to the philosophy of mind, and has much to say to psychologists and cognitive scientists.

The type identity theory, according to which types of mental state are identical to types of physical state, fell out of favour for some years but is now being considered with renewed interest. Many philosophers are critically re-examining the arguments which were marshalled against it, finding in the type identity theory both resources to strengthen a comprehensive, physicalistic metaphysics and a useful tool in understanding the relationship between developments in psychology and new results in neuroscience. This volume brings together leading philosophers of mind, whose essays challenge in new ways the standard objections to type identity theory, such as the multiple realizability objection and the modal argument. Other essays show how cognitive science and neuroscience are lending new support to type identity theory and still others provide, extend and improve traditional arguments concerning the theory's explanatory power.

I will be concerned in these pages with the views that Gilbert Harman puts forward in his immensely stimulating paper Self-Reflexive Thoughts.¹ Harman maintains that self referential thoughts are possible, and also that they are useful. I applaud both of these claims. An example of a self referential thought is the thought that every thought, including this present one, has a logical structure. I feel sure that this thought exists, for I have entertained it on a number of occasions. Moreover, I feel that it is extremely useful. Without deploying it, how could we tell the whole truth about the nature of thoughts?

Thought and World has three main concerns.1 First, it presents and defends a deflationary theory of propositional truth—that is, a deflationary theory of the concept of truth that figures in claims like the proposition that snow is white is true. I have long admired the deflationary theory of truth that Paul Horwich developed in the eighties, but I have also had substantial misgivings about that theory.2 In writing TW I was concerned to formulate an alternative view that enjoys the virtues of Horwich’s theory while lacking its defects. Second, the book presents deflationary accounts of our relational semantic con- cepts—for example, the concept of reference that figures in the proposition the concept of the Evening Star refers to the planet Venus, and the concept of expression that figures in the proposition the concept of a triangle expresses the property triangularity. Third, the book provides an account of our correspondence intuitions. As we all recognize, commonsense semantics includes a concept of semantic correspondence: we are all prepared to say, for example, that the proposition that snow is white corresponds semantically to the state of affairs snow’s being white, and that the proposition that the uni- verse is expanding corresponds semantically to a state of affairs that actually obtains. I wanted to explain the relationship between this concept and the concept of propositional truth, to identify the factors that make the concept useful, and, most importantly, to show that it is possible to extend deflation- ism so as to provide an analysis of the concept. (The concept of correspon- dence stands for a relation between propositions and states of affairs. What I maintain in the book is that this relation can be characterized in deflationary terms. I do not maintain that it is possible to give a deflationary account of..

This book presents a comprehensive theory of consciousness. The initial chapter distinguishes six main forms of consciousness and sketches an account of each one. Later chapters focus on phenomenal consciousness, consciousness of, and introspective consciousness. In discussing phenomenal consciousness, Hill develops the representational theory of mind in new directions, arguing that all awareness involves representations, even awareness of qualitative states like pain. He then uses this view to undercut dualistic accounts of qualitative states. Other topics include visual awareness, visual appearances, emotional qualia, and meta-cognitive processing. This important work will interest a wide readership of students and scholars in philosophy of mind and cognitive science.

There are two main accounts of what it is for external objects to be presented in visual experience. According to particularism, particular objects are built into the representational contents of experiences. Existentialism is a quite different view. According to existentialism, the representational contents of perceptual experiences are general rather than particular, in the sense that the contents can be fully captured by existentially quantified statements. The present paper is a defense of existentialism. It argues that existentialism is much better equipped than particularism to explain the contents of hallucinations, and it defends existentialism against three objections.

John Heil’s new book ranges over many of the major topics in metaphysics, including substance, properties, causation, space, time, parts and wholes, modality, essence, agency, and consciousness. It has interesting things to say about all of the issues it discusses, but there are three topics that are especially prominent in the book, and which help to organize the discussion. These all flow from the differences between our everyday, commonsense understanding of reality and the representations that are offered by science.

As the subtitle indicates, this book is concerned with the relationship between consciousness and the physical world. It recommends a novel and disturbingly pessimistic view about this topic that it calls “naturalistic mysterianism.” The view is naturalistic because it maintains that states of consciousness are reducible to physical properties of the brain. It counts as “mysterian” because it asserts that the physical properties in question are entirely beyond our ken—that they lie well beyond the scope of contemporary neuroscience, and quite likely beyond the scope of any body of scientific knowledge that we might develop in the future. Naturalistic mysterianism thus affirms the unity of consciousness with the physical world, while also claiming that the nature of that unity will forever elude us, due to inherent limits of our cognitive capacities.

This paper has three main concerns. First, it proposes a deflationary theory of the concept of truth, arguing thatthe concept can be explicitly defined in terms of substitutionalquantification. Second, it attempts to describe and explainthe intuitions that have traditionally been thought tofavor correspondence theories of truth over deflationarytheories. And third, it argues that these intuitions areultimately compatible with deflationism, maintaining,among other things, that the relation of semantic correspondence can itself be characterized in terms ofsubstitutional quantification.

As the subtitle indicates, this book is concerned with the relationship between consciousness and the physical world. It recommends a novel and disturbingly pessimistic view about this topic that it calls “naturalistic mysterianism.” The view is naturalistic because it maintains that states of consciousness are reducible to physical properties of the brain. It counts as “mysterian” because it asserts that the physical properties in question are entirely beyond our ken—that they lie well beyond the scope of contemporary neuroscience, and quite likely beyond the scope of any body of scientific knowledge that we might develop in the future. Naturalistic mysterianism thus affirms the unity of consciousness with the physical world, while also claiming that the nature of that unity will forever elude us, due to inherent limits of our cognitive capacities.

As the subtitle indicates, this book is concerned with the relationship between consciousness and the physical world. It recommends a novel and disturbingly pessimistic view about this topic that it calls “naturalistic mysterianism.” The view is naturalistic because it maintains that states of consciousness are reducible to physical properties of the brain. It counts as “mysterian” because it asserts that the physical properties in question are entirely beyond our ken—that they lie well beyond the scope of contemporary neuroscience, and quite likely beyond the scope of any body of scientific knowledge that we might develop in the future. Naturalistic mysterianism thus affirms the unity of consciousness with the physical world, while also claiming that the nature of that unity will forever elude us, due to inherent limits of our cognitive capacities.

I thank the commentators for their extremely rich and stimulating discussions of Thought and World.1 Their commentaries show that a number of TW’s claims are in need of clarification and defense, and that some of its arguments contain substantial lacunae. I am very pleased to have these flaws called to my attention, and to have an opportunity to try to correct them. Also, I am grateful for the commentators’ endorsements. As is perhaps inevitable in a symposium of this kind, the commentaries contain more questions and objections than expressions of agreement; but even so, each of the com- mentators conveys the impression that he found TW to be worth reading. It is an honor to receive endorsements, even qualified endorsements, from such a distinguished company.

There is an important family of semantic notions that we apply to thoughts and to the conceptual constituents of thoughts - as when we say that the thought that the Universe is expanding is true. Thought and World presents a theory of the content of such notions. The theory is largely deflationary in spirit, in the sense that it represents a broad range of semantic notions - including the concept of truth - as being entirely free from substantive metaphysical and empirical presuppositions. At the same time, however, it takes seriously and seeks to explain the intuition that there is a metaphysically or empirically 'deep' relation linking thoughts to reality. Thus, the theory represents a kind of compromise between deflationism and versions of the correspondence theory of truth. This book will appeal to students and professionals interested in the philosophy of logic and language.