This important book provides a theory about the nature of fiction, and about the relation between the author, the reader and the fictional text. The approach is philosophical: that is to say, the author offers an account of key concepts such as fictional truth, fictional characters, and fiction itself. The book argues that the concept of fiction can be explained partly in terms of communicative intentions, partly in terms of a condition which excludes relations of counterfactual dependence between the world (...) and the text. This communicative model is then applied to the following problems: how can something be 'true in the story' without being explicitly stated in the text? In what ways does interpreting a fictional story depend upon grasping its author's intentions? Is there always a unique best interpretation of a fictional text? What is the correct semantics for fictional names? What is the nature of our emotional response to a fictional work? In answering these questions the author explores the complex interaction between author, reader, and text. This interaction requires the reader to construct a 'fictional author' - a character in the story whose personality, beliefs and emotional states must be interpreted if the reader is to grasp the meaning of the work. (shrink)

This is a book about the nature of film: about the nature of moving images, about the viewer's relation to film, and about the kinds of narrative that film is capable of presenting. It represents a very decisive break with the semiotic and psychoanalytic theories of film which have dominated discussion. The central thesis is that film is essentially a pictorial medium and that the movement of film images is real rather than illusory. A general theory of pictorial representation is (...) presented, which insists on the realism of pictures and the impossibility of assimilating them to language. It criticizes attempts to explain the psychology of film viewing in terms of the viewer's imaginary occupation of a position within the world of film. On the contrary, film viewing is nearly always impersonal. (shrink)

Religion, War, and Ethics is a collection of primary sources from the world's major religions on the ethics of war. Each chapter brings together annotated texts - scriptural, theological, ethical, and legal - from a variety of historical periods that reflect each tradition's response to perennial questions about the nature of war: when, if ever, is recourse to arms morally justifiable? What moral constraints should apply to military conduct? Can a lasting earthly peace be achieved? Are there sacred reasons for (...) waging war, and special rewards for those who do the fighting? The religions covered include Sunni and Shiite Islam; Judaism; Roman Catholic, Eastern Orthodox, and Protestant Christianity; Theravada Buddhism; East Asian religious traditions ; Hinduism; and Sikhism. Each section is compiled by a specialist, recognized within his or her respective religious tradition, who has also written a commentary on the historical and textual context of the passages selected. (shrink)

Hegel repeatedly identifies rational self-consciousness as a real example of the concept, and its tripartite constituents: universality, particularity, and individuality. In what follows I will show that the concept as such, along with its tripartite constituents, are constitutive of rational self-consciousness. On the one hand, by showing how Hegel’s concept of the concept applies to rational self-consciousness, I aim to provide a concrete example of the concept of the concept in a real being whose being is not merely logical. On (...) the other hand, I aim to show that Hegel’s application of the concept to rational self-consciousness is motivated by a problem within the philosophy of mind. For this reason, Hegel’s application of the concept of the concept to the mind is not arbitrary, but motivated by significant philosophical problems. (shrink)

Recent debate about the error theory has taken a ‘formal turn’. On the one hand, there are those who argue that the error theory should be rejected because of its difficulties in providing a convincing formal account of the logic and semantics of moral claims. On the other hand, there are those who claim that such formal objections fail, maintaining that arguments against the error theory must be of a substantive rather than a formal kind. In this paper, we argue (...) that formal objections to the error theory cannot be eschewed but must be met head-on. (shrink)

An overview of the hedonistic theory of wellbeing.

Growing concern with the panpsychist's ostensive inability to solve the ‘combination problem’ has led some authors to adopt a view titled ‘Cosmopsychism’. This position turns panpsychism on its head: rather than many tiny atomic minds, there is instead one cosmos-sized mind. It is supposed that this view voids the combination problem, however I argue that it does not. I argue that there is a ‘de-combination problem’ facing the cosmopsychist, which is equivalent to the combination problem as they are both concerned (...) with subjects being proper parts of other subjects. I then propose two methods for both theorists to avoid the problem of subject-subject proper parthood relations: a distinction between absolute and relative phenomenal unity, and a modification of the essential nature of subjects. Of these two options, I find the latter option wanting and propose that the first should be adopted. (shrink)

As conceived by founders Matthew Lipman and Ann Margaret Sharp, Philosophy for Children is a humanistic practice with roots in the Hellenistic tradition of philosophy as a way of life given to the search for meaning, in American pragmatism with its emphasis on qualitative experience, collaborative inquiry and democratic society, and in American and Soviet social learning theory. The programme has attracted overlapping and conflicting criticism from religious and social conservatives who don’t want children to question traditional values, from educational (...) psychologists who believe certain kinds of thinking are beyond children of certain ages, from philosophers who define their discipline as theoretical and exegetical, from critical theorists who see the programme as politically compliant, and from postmodernists who see it as scientistic and imperialist. The paper is written as a dialogue in order to illustrate the complex interactions among these normative positions. Rather than respond to particular criticisms in depth, I indicate the general nature of my position regarding them and provide references to published material where they have been made and responded to over the past 40 years. (shrink)

In this paper I highlight two noteworthy features of assertions about our desires, and then highlight two ways in which they can mislead us into drawing unwarranted conclusions about desire. Some of our assertions may indicate that we are sometimes motivated independently of desire, and other assertions may suggest that there are vast divergences between our normative judgements and our desires. But I suggest that some such assertions are, in this respect, potentially misleading, and have in fact misled authors such (...) as Russ Shafer-Landau, Jack Woods, and Tim Scanlon. (shrink)

Philip Goff has recently argued that due to the ‘subject-summing problem’, panpsychism cannot explain consciousness. The subject-summing problem is a problem which is analogous to the physicalist's explanatory gap; it is a gap between the micro-experiential facts and the macro-experiential facts. Goff also suggests that there could be a solution by way of a ‘phenomenal bonding relation’, but believes that this solution is not up to scratch because we cannot form a positive not-merely-role-playing concept of this relation. In this paper, (...) I argue that the phenomenal bonding solution is up to scratch. I argue that the panpsychist, by carefully inspecting their phenomenology and scrutinising their concepts, can form a positive concept of the phenomenal bonding relation. By doing this they can start to get around their explanatory gap. (shrink)

The unexpected roles of the microbiota in cancer challenge explanations of carcinogenesis that focus on tumor-intrinsic properties. Most tumors contain bacteria and viruses, and the host’s proximal and distal microbiota influence both cancer incidence and therapeutic responsiveness. Continuing the history of cancer–microbe research, these findings raise a key question: to what extent is the microbiota relevant for clinical oncology? We approach this by critically evaluating three issues: how the microbiota provides a predictive biomarker of cancer growth and therapeutic responsiveness, the (...) microbiota’s causal role(s) in cancer development, and how therapeutic manipulations of the microbiota improve patient outcomes in cancer. Clarifying the conceptual and empirical aspects of the cancer-associated microbiota can orient future research and guide its implementation in clinical oncology. (shrink)

Many philosophers think that part of what makes an event lucky concerns how probable that event is. In this paper, I argue that an epistemic probability account of luck successfully resists recent arguments that all theories of luck, including probability theories, are subject to counterexample (Hales 2016). I argue that an event is lucky if and only if it is significant and sufficiently improbable. An event is significant when, given some reflection, the subject would regard the event as significant, and (...) the event’s epistemic probability, determined by the subject’s evidence, is the only kind of probability that directly bears on whether or not the event is lucky. I conclude with some lessons that are applicable to probability theorists of luck generally, including those defending non-epistemic probability theories. (shrink)

It is commonplace to suppose that the theory of individual rational choice is considerably less problematic than the theory of collective rational choice. In particular, it is often assumed by philosophers, economists, and other social scientists that an individual's choices among outcomes accurately reflect that individual's underlying preferences or values. Further, it is now well known that if an individual's choices among outcomes satisfy certain plausible axioms of rationality or consistency, that individual's choice-behavior can be interpreted as maximizing expected utility (...) on a utility scale that is unique up to a linear transformation. Hence, there is, in principle, an empirically respectable method of measuring individuals' values and a single unified schema for explaining their actions as value maximizing. (shrink)

Many philosophers have come to believe there is no single criterion by which one can distinguish between a science and a pseudoscience. But it need not follow that no distinction can be made: a multifactorial account of what constitutes a pseudoscience remains possible. On this view, knowledge-seeking activities fall on a spectrum, with the clearly scientific at one end and the clearly non-scientific at the other. When proponents claim a clearly non-scientific activity to be scientific, it can be described as (...) a pseudoscience. One feature of a scientific theory is that it forms part of a research tradition being actively pursued by a scientific community. If a theory lacks this form of epistemic warrant, this is a pro tanto reason to regard it as pseudoscientific. (shrink)

In this essay I respond to three of the most forceful objections to the open view of the future. It is argued that a) open view advocates must deny bivalence; b) the open view offers no theodicy advantages over classical theism; and c) the open view can’t assure believers that God can work all things to the better. I argue that the first objection is premised on an inadequate assessment of future tensed propositions, the second is rooted in an inadequate (...) assessment of free will, and the third is grounded in an inadequate assessment of God’s intelligence. (shrink)

In this paper, I explain the curious role played by the Argument from Absolute Terms in Peter Unger's book Ignorance, I provide a critical presentation of the argument, and I consider some outstanding issues and the argument’s contemporary significance.

There is a theory about inner speech which holds that it is ‘dialogic’. This paper reviews this theory, evaluates the arguments which support it, and presents an argument against it.

The purpose of this article is to critique the primary arguments given by Paul Bloom and Jesse Prinz against empathy, and to argue instead that empathy is best understood as a virtue that plays an important but complicated role in the moral life. That it is a virtue does not mean that it always functions well, and empathy sometimes contributes to behavior that is partial and unfair. In some of their writings, both Bloom and Prinz endorse the view that empathy (...) is a fixed trait, but there is little reason to think this, and the studies that they cite do not support this view. Further, a number of recent studies suggest the opposite: our empathic reactions are malleable and subject to environmental effects and learning. Although our capacities for cognitive and emotional empathy are clearly not sufficient for being moral, I argue that they are functionally necessary traits that, like other virtues, must be cultivated correctly. (shrink)

My aim in this paper is to elucidate Leibniz’s account of moral normativity and the relation between motivation and obligation. I argue against the recent interpretation of Christopher Johns, according to which Leibniz’s moral theory is actually a deontological theory, having more in common with Kantian moral theory than with any form of consequentialism. I argue that for Leibniz reason is not itself the source of practical normativity and real obligation; the source of that is rather the agent’s desire for (...) his own happiness or perfection. For Leibniz, reason in its practical role functions instrumentally: the desire for one’s own happiness is the source of practical normativity, and reason functions only to transfer that normativity from the end that it does not determine to the means to those ends that it does determine. (shrink)

This essay presents results about a deviation from independence measure called focused correlation . This measure explicates the formal relationship between probabilistic dependence of an evidence set and the incremental confirmation of a hypothesis, resolves a basic question underlying Peter Klein and Ted Warfield's ‘truth-conduciveness’ problem for Bayesian coherentism, and provides a qualified rebuttal to Erik Olsson's claim that there is no informative link between correlation and confirmation. The generality of the result is compared to recent programs in Bayesian epistemology (...) that attempt to link correlation and confirmation by utilizing a conditional evidential independence condition. Several properties of focused correlation are also highlighted. Introduction Correlation Measures 2.1 Standard covariance and correlation measures 2.2 The Wayne–Shogenji measure 2.3 Interpreting correlation measures 2.4 Correlation and evidential independence Focused Correlation Conclusion Appendix CiteULike Connotea Del.icio.us What's this? (shrink)

In this note the claim is defended that Frege was a realist in the sense that he attributed causal efficacy to certain abstract objects. The arguments of Dummett and Sluga (cf. Inquiry, Vols. 18, 19, and 20 [1975–77]) to the contrary are criticized.

There is a curious letter of 24 April 1928, reproduced in Russell’s Autobiography. It is from Russell to Max Newman. It is my thesis that there is a crucial “not” missing from the text and interpretations of the letter. This small point, if it is correct, has a very large impact for clarifying how Russell saw Newman’s challenge to his structural realism according to which all of our empirical knowledge in physics concerns structure alone.

Surprisingly few articles have focused on Aquinas’s particular conception of necessary beings in the Third Way, and many scholars have espoused inaccurate or incomplete views of that conception. My aim in this paper is both to offer a corrective to some of those views and, more importantly, to provide compelling answers to the following two questions about the necessary beings of the Third Way. First, how exactly does Aquinas conceive of these necessary beings? Second, what does Aquinas seek to accomplish (...) in the third stage of the Third Way? In answering these questions, I challenge prominent contemporary understandings of the necessary beings of the Third Way. (shrink)

In his groundbreaking book, Against Coherence (2005), Erik Olsson presents an ingenious impossibility theorem that appears to show that there is no informative relationship between probabilistic measures of coherence and higher likelihood of truth. Although Olsson's result provides an important insight into probabilistic models of epistemological coherence, the scope of his negative result is more limited than generally appreciated. The key issue is the role conditional independence conditions play within the witness testimony model Olsson uses to establish his result. Olsson (...) maintains that his witness model yields charitable ceteris paribus conditions for any theory of probabilistic coherence. Not so. In fact, Olsson's model, like Bayesian witness models in general, selects a peculiar class of models that are in no way representative of the range of options available to coherence theorists. Recent positive results suggest that there is a way to develop a formal theory of coherence after all. Further, although Bayesian witness models are not conducive to the truth, they are conducive to reliability. (shrink)

Heightened consciousness has become a common expression in daily conversations, but it expresses a number of different concepts depending on the meaning of the speaker and is related to other phrases or terms that have slightly different connotations. This entry explores the different meanings of the term heightened consciousness and similar phrases in regard to personal development.

My paper was commissioned by Journal of Philosophy to provide a piece adequately explaining the significance of the Lacanian Mirror stage within Lacan's larger work. -/- I focus on the transition from the mirror stage to the incorporation of the subject into the symbolic order. I argue that the mirror stage is transitional and that its significance lies in what of it is incorporated into and transformed within the more complex structures of the subject and the unconscious. -/- Implicit in (...) my claim is that "lacanian" theories which hypostatize the mirror stage into a determinate structure of adult consciousness are misinterpreting Lacan. I use Seminars 1 and 2 to make fuller sense the mirror stage as presented in his Ecrits. (shrink)

It has now been more than 50 years since H. L. A Hart and Lord Patrick Devlin first squared off in perhaps the most celebrated jurisprudential debate of the twentieth‐century (1959–1967). The central issue in that dispute—whether the state may criminalize immoral behavior as such—continues to be debated today, but in a vastly changed legal landscape. In this article I take a fresh look at the Hart‐Devlin debate in the light of five decades of social and legal changes.

Analyzing geometric properties of high-dimensional loss functions, such as local curvature and the existence of other optima around a certain point in loss space, can help provide a better understanding of the interplay between neural network structure, implementation attributes, and learning performance. In this work, we combine concepts from high-dimensional probability and differential geometry to study how curvature properties in lower-dimensional loss representations depend on those in the original loss space. We show that saddle points in the original space are (...) rarely correctly identified as such in expected lower-dimensional representations if random projections are used. The principal curvature in the expected lower-dimensional representation is proportional to the mean curvature in the original loss space. Hence, the mean curvature in the original loss space determines if saddle points appear, on average, as either minima, maxima, or almost flat regions. We use the connection between expected curvature in random projections and mean curvature in the original space (i.e., the normalized Hessian trace) to compute Hutchinson-type trace estimates without calculating Hessian-vector products as in the original Hutchinson method. Because random projections are not suitable to correctly identify saddle information, we propose to study projections along dominant Hessian directions that are associated with the largest and smallest principal curvatures. We connect our findings to the ongoing debate on loss landscape flatness and generalizability. Finally, for different common image classifiers and a function approximator, we show and compare random and Hessian projections of loss landscapes with up to about 7×10^6 parameters. (shrink)

In this essay I pay homage to one of the most important but neglected philosophers of liberation in Latin America, Luis Villoro, by considering what possible lessons we can learn from his philosophy about how to approach injustices in the Americas. Villoro was sympathetic to liberatory-leftist philosophies but he became concerned with the direction they took once they grew into philosophical movements centered on shared beliefs or on totalizing theories that presume global explanatory power. These movements became vulnerable to extremes (...) or vices that undermine their liberatory promise. I examine some of these worrying tendencies among that body of literature roughly described as “decolonial thought” (e.g., Enrique Dussel, Walter Mignolo). After a concise presentation of Villoro and the decolonial turn, I consider four dangers that this new liberatory-leftist movement faces and why Villoro should be a significant voice as the decoloniality debate moves forward. (shrink)

My paper highlights one Personalist aspect of St. Anselm's Platonic perspective, namely the ontological priority and interpenetration of persons. The paper first discusses Anselm's metaphysical Platonism, then charts the Anselmian path towards God, through participation in the divine attributes. It then focuses on images of persons, and their degree of being. I argue that, at least for certain human relationships marked by strong love or friendship, Anselm regards the image of the person as mediating the being of the person imaged.

Simple-type theory is widely regarded as inadequate to capture the metaphysics of mathematics. The problem, however, is not that some kinds of structure cannot be studied within simple-type theory. Even structures that violate simple-types are isomorphic to structures that can be studied in simple-type theory. In disputes over the logicist foundations of mathematics, the central issue concerns the problem that simple-type theory fails to assure an infinity of natural numbers as objects. This paper argues that the problem of infinity is (...) based on a metaphysical prejudice in favor of numbers as objects — a prejudice that mathematics can get along without. (shrink)

This study examines how the American Institute of Certified Professional Accountants (AICPA) uses character and concept words to communicate normative narratives to different internal audiences. Our analysis of 552 editorials published in the AICPA’s Journal of Accountancy during the 1916–1973 period illustrates how the AICPA communicated similar yet different normative narratives to firm partners and students. During this time period, the centrality of ethically infused words such as ethics, conduct, and independence not only varied across different time periods but also (...) across different target audiences. The findings draw attention to the importance of considering the audiences for ethical narratives as well as the ways that the intra-textual positioning of concepts and characters allow organizations to speak to slightly different audiences within the same communication medium. (shrink)

The ‘Toward a Science of Consciousness’ conference – which has now become ‘The Science of Consciousness’ conference – recently (June 5-10, 2017) took place instead at the receptive venue of the Hyatt Regency in La Jolla, California. It was well-planned and organized, which is extraordinary considering that it had to be organized all over again within a month or two when the original Shanghai location was cancelled. Things ran smoothly at La Jolla and it was well attended for an odd-year, (...) non-Tucson setting. The Director of the Center for Consciousness Studies, Dr. Stuart Hameroff, and his able Assistant Director and logistics manager, Abi Behar Montefiore, deserve full credit for carrying off this last minute transfer, as do many others who worked in supporting capacities. (shrink)

In the business ethics literature, many argue that managerial decision making ought to be improved by more robust ethical concerns. Some see the virtue of “practical wisdom” as the key for improved managerial decision making. However, because of the epistemic limitations confronting decision makers in the face of irreducible market complexity, there is a risk that practical wisdom, employed in the context of day‐to‐day managerial decision making, becomes an impractical concept. Nevertheless, if the attempt to incorporate virtue ethics (and its (...) related concepts) into business practices is laudable, if indeed a virtuous life is worth pursuing and practical wisdom plays an essential role toward that end, it is important to attempt to salvage practical wisdom and uncover its appropriate usage. Thus, this article pursues two major ends. First, upon surveying some of the prominent and standard usages of the term, it articulates concerns, rooted in epistemic limitations, about the way that practical wisdom appears in business ethics literature. Second, it offers a new way forward for understanding “practical wisdom.” By contextualizing day‐to‐day, rule‐based managerial decision making within the ethical value of the market order, practical wisdom reappears as the higher‐order capacity to pursue vocations, as morally worthwhile projects, in business. (shrink)

One goal of normative multi-agent system theory is to formulate principles for normative system change that maintain the rule-like structure of norms and preserve links between norms and individual agent obligations. A central question raised by this problem is whether there is a framework for norm change that is at once specific enough to capture this rule-like behavior of norms, yet general enough to support a full battery of norm and obligation change operators. In this paper we propose an answer (...) to this question by developing a bimodal logic for norms and obligations called NO. A key to our approach is that norms are treated as propositional formulas, and we provide some independent reasons for adopting this stance. Then we define norm change operations for a wide class of modal systems, including the class of NO systems, by constructing a class of modal revision operators that satisfy all the AGM postulates for revision, and constructing a class of modal contraction operators that satisfy all the AGM postulates for contraction. More generally, our approach yields an easily extendable framework within which to work out principles for a theory of normative system change. (shrink)

Henry Kyburg’s lottery paradox (1961, p. 197) arises from considering a fair 1000 ticket lottery that has exactly one winning ticket. If this much is known about the execution of the lottery it is therefore rational to accept that one ticket will win. Suppose that an event is very likely if the probability of its occurring is greater than 0.99. On these grounds it is presumed rational to accept the proposition that ticket 1 of the lottery will not win. Since (...) the lottery is fair, it is rational to accept that ticket 2 won’t win either—indeed, it is rational to accept for any individual ticket i of the lottery that ticket i will not win. However, accepting that ticket 1 won’t win, accepting that ticket 2 won’t win, . . . , and accepting that ticket 1000 won’t win entails that it is rational to accept that no ticket will win, which entails that it is rational to accept the contradictory proposition that one ticket wins and no ticket wins. (shrink)

Result of a conference, "Sociobiology: implications for human studies", held at San Francisco State University on June 14-15, 1977. Includes index. Bibliography: p. 295-316.

Logic is a celebrated representation language because of its formal generality. But there are two senses in which a logic may be considered general, one that concerns a technical ability to discriminate between different types of individuals, and another that concerns constitutive norms for reasoning as such. This essay embraces the former, permutation-invariance conception of logic and rejects the latter, Fregean conception of logic. The question of how to apply logic under this pure invariantist view is addressed, and a methodology (...) is given. The pure invariantist view is contrasted with logical pluralism, and a methodology for applied logic is demonstrated in remarks on a variety of issues concerning non-monotonic logic and non-monotonic inference, including Charles Morgan’s impossibility results for non-monotonic logic, David Makinson’s normative constraints for non-monotonic inference, and Igor Douven and Timothy Williamson’s proposed formal constraints on rational acceptance. (shrink)

This paper presents statistical default logic, an expansion of classical (i.e., Reiter) default logic that allows us to model common inference patterns found in standard inferential statistics, including hypothesis testing and the estimation of a populations mean, variance and proportions. The logic replaces classical defaults with ordered pairs consisting of a Reiter default in the first coordinate and a real number within the unit interval in the second coordinate. This real number represents an upper-bound limit on the probability of accepting (...) the consequent of an applied default and that consequent being false. A method for constructing extensions is then defined that preserves this upper bound on the probability of error under a (skeptical) non-monotonic consequence relation. (shrink)

Members of modern, digital societies experience a tremendous number and diversity of stimuli from sources such as computers, televisions, other electronic media, and various forms of advertising. In this paper, I argue that the presence of a wide range of stimulating items in modern societies poses a special risk to the welfare of members of modern societies. By considering the set of modern stimuli in a more comprehensive way than normative theorists have done so far—as part of a complex system (...) with which members of modern societies cannot reasonably avoid interacting—we can see why the perceptual and informational spaces in which modern life occurs can be sources of disvalue for members of modern societies. This seems true even though the technological innovations that produce these stimuli add great value to the lives of members of modern societies. (shrink)

Most debate about the ethical implications of modern biotechnology has centred around medical issues, but public concerns over the impact of agricultural biotechnologies have gathered momentum. This volume, resulting from the 55th University of Nottingham Easter School in Agricultural and Food Science, provides a survey of this new field of enquiry. The book will be of interest to a wide readership, including applied philosophers, sociologists, economists and ecologists, as well as biotechnologists and agricultural and food scientists.

Catholic Social Teaching takes a rather cautious view toward the value of the ideas of Adam Smith, due to his emphasis on negative political and economic liberty. Detractors of Smith within CST point to what they consider to be deficiencies within his works: an impoverished moral anthropology, a lack of concern for the common good, and markets untethered to human needs. Defenders of Smith within CST tend to emphasize the material benefits that derive from Smithian institutions, such as economic growth, (...) improvements in standards of living, and the new opportunities that arise from cultures focused on innovation. This paper argues that Smith’s ideas have real value for CST. However, this value primarily lies in his moral psychology. While not denying the dangers of business activity for our moral lives, Smith also helps us to understand the possibility of the moral corruption of those who wield political power, thus providing an indirect defense of political and economic liberty that coheres with important Christian ethical notions found in CST. This is the case even though CST does not consistently recognize concerns surrounding the dangers of wielding political power—and thus Smith’s arguments offer real challenges to CST as well. This paper further suggests that these basic insights are relevant regardless of one’s favored institutional arrangements. (shrink)

This dissertation explores the phenomenon of inner speech. It takes the form of an introduction, which introduces the phenomenon; three long, largely independent chapters; a conclusion; and an appendix. -/- The first chapter deliberates between two possible theories as to the nature of inner speech. One of these theories is that inner speech is a kind of actual speech, just as much as external speech is a kind of actual speech. When we engage in inner speech, we are actually speaking, (...) but we are doing so silently. The other theory holds that inner speech is a kind of imagined speech. When we produce inner speech, we are imagining performing the action of speaking. The chapter argues for the theory that inner speech is a kind of actual speech. -/- The second chapter argues against a theory which holds that inner speech is dialogic. On this theory, a subject represents different perspectives in inner speech and a dialogue can take place in the same sense in which a dialogue can take place between different individuals in external speech. The chapter borrows some important material from the philosophy of language to show that this position, though it might have some intuitive appeal, is ultimately implausible. -/- The third chapter is concerned with the question whether inner speech can be a source of knowledge of our own beliefs. It shows that the view that inner speech can be such a source is subject to an adapted version of a problem from the epistemology of testimony: roughly, what justification do we have for believing that we believe what we say in inner speech? It makes use of some material from the recent debate about cognitive phenomenology to develop a version of the view which is not subject to this problem. It then provides some initial discussion of the merits of this view. -/- The appendix takes up a more practical issue regarding inner speech. There is a theory that auditory verbal hallucinations – i.e. experiences of voice-hearing – take place when someone produces an utterance in inner speech but loses track of the fact that they have produced the utterance. Accordingly, they have an experience as of something being said and, not realising that they are the source of the experience, postulate some external cause, i.e. someone else speaking. The appendix develops an alternative account which has been suggested in the literature, at times drawing upon earlier work in the dissertation. (shrink)