Christopher Peacocke

A theory of understanding -- Truth's role in understanding -- Critique of justificationist and evidential accounts -- Do pragmatist views avoid this critique? -- A realistic account -- How evidence and truth are related -- Three grades of involvement of truth in theories of understanding -- Anchoring -- Next steps -- Reference and reasons -- The main thesis and its location -- Exposition and four argument-types -- Significance and consequences of the main thesis -- The first person as a case study -- Fully self-conscious thought -- Immunity to error through misidentification relative to the first person -- Can a use of the first-person concept fail to refer? -- Some conceptual roles are distinctive but not fundamental -- Implicit conceptions -- Implicit conceptions : motivation and examples -- Deflationary readings rejected -- The phenomenon of new principles -- Explanation by implicit conceptions -- Rationalist aspects -- Consequences : rationality, justification, understanding -- Transitional -- Applications to mental concepts -- Conceiving of conscious states -- Understanding and identity in other cases -- Constraints on legitimate explanations in terms of identity -- Why is the subjective case different? -- Attractions of the interlocking account -- Tacit knowledge, and externalism about the internal -- Is this the myth of the given? -- Knowledge of others' conscious states -- Communicability : between Frege and Wittgenstein -- Conclusions and significance -- 'Another I' : representing perception and action -- The core rule -- Modal status and its significance -- Comparisons -- The possession-condition and some empirical phenomena -- The model generalized -- Wider issues -- Mental action -- The distinctive features of action-awareness -- The nature and range of mental actions -- The principal hypothesis and its grounds -- The principal hypothesis : distinctions and consequences -- How do we know about our own mental actions? -- Concepts of mental actions and their epistemological significance -- Is this account open to the same objections as perceptual models of introspection? -- Characterizing and unifying schizophrenic experience -- The first person in the self-ascription of action -- Rational agency and action-awareness -- Representing thoughts -- The puzzle -- A proposal -- How the solution treats the constraints that generate the puzzle -- Relation to single-level treatments -- An application : reconciling externalism with distinctive self-knowledge.

This paper presents an account of the understanding of statements involving metaphysical modality, together with dovetailing theories of their truth conditions and epistemology. The account makes modal truth an objective matter, whilst avoiding both Lewisian modal realism and mind-dependent or expressivist treatments of the truth conditions of modal sentences. The theory proceeds by formulating constraints a world-description must meet if it is to represent a genuine possibility. Modal truth is fixed by the totality of the constraints. To understand modal discourse is to have tacit knowledge of the body of information stated in these constraints. Modal knowledge is attained by evaluating modal statements in accordance with the constraints. The question of the general relations between modal truth and knowability is also addressed. The paper includes a discussion of which modal logic is supported by the presented theory of truth conditions for modal statements.

The openness of joint awareness between two or more subjects is a perceptual phenomenon. It involves a certain mutual awareness between the subjects, an awareness that makes reference to that very awareness itself. Properly characterized, such awareness can generate iterated awareness ‘x is aware that y is aware that x is aware...’ to whatever level the subjects can sustain. The openness should not be characterized in terms of Lewis–Schiffer common knowledge, the conditions for which are not met in many basic cases of joint attention. A range of phenomena, including linguistic communication and other interpersonal relations, that have previously been described in terms of common knowledge should rather be seen as involving open joint awareness. An Appendix to this chapter discusses the relations of this approach to Barwise's discussions, and disputes the claim that these mental phenomena require the postulation of self-involving situations.

The topic of Being Known is what I call the Integration Challenge, which is the challenge of providing, for any given domain, a simultaneously acceptable metaphysics and epistemology for that domain. In virtually every domain of thought, it is a substantive task to reconcile our metaphysics and our epistemology of that domain. In some cases, we have an intuitively acceptable metaphysics, but cannot find a plausible epistemology which would allow us knowledge of truths for which that is the right metaphysics. In others, the reverse situation obtains. In yet others, we have an intuitive metaphysics and an intuitive epistemology, but cannot see how they are to be reconciled.

Drawing upon a conception of the metaphysics of conscious states and of first-person content, we can argue that Descartes's transition ‘Cogito ergo sum’ is both sound and one he is entitled to make. We can nevertheless formulate a version of Lichtenberg's objection that can still be raised after Bernard Williams's discussion. I argue that this form of Lichtenberg's revenge can also be undermined. In doing so it helps to compare the metaphysics of subjects, worlds and times. The arguments also apply to Descartes's ‘second Cogito’, that it is one and the same subject that thinks, wills, imagines

The subjective properties of an experience are those which specify what having the experience is like for its subject. The sensational properties of an experience are those of its subjective properties that it does not possess in virtue of features of the way the experience represents the world as being (its representational content). Perhaps no topic in the philosophy of mind has been more vigorously debated in the past quarter-century than whether there are any sensational properties, so conceived. The existence or otherwise of sensational properties is pivotal in assessing functionalism, representationalism, and many other conceptions of mental states and the nature of our ability to think about them. Instead of engaging in extended sentence- by-sentence dissection of these many discussions, I hope that the theses I formulate will, taken together, comprise a positive conception of sensational properties that can be drawn upon in assessing those debates. My main aim is to articulate that conception.

We can experience music as sad, as exuberant, as sombre. We can experience it as expressing immensity, identification with the rest of humanity, or gratitude. The foundational question of what it is for music to express these or anything else is easily asked; and it has proved extraordinarily difficult to answer satisfactorily. The question of what it is for emotion or other states to be heard in music is not the causal or computational question of how it comes to be heard. It is not the question of the social influences on how we hear music. Nor is it the question of the evolutionary explanation, if such there be, of the existence of such perceptions. It is the constitutive question, the ‘what-is-it?’ question, that is my concern here. It is a question unaddressed by purely syntactic analyses of music. A correct answer to this constitutive question constrains all those other, equally challenging, empirical questions about music. I am going to propose an answer to the constitutive question, drawing on the resources of our current philosophy of perception and cognition within contemporary philosophy of mind. In the very tight space available to me, I will not survey the extant competing proposals, but simply offer my own suggestion straight out, while noting some points of contrast with other approaches. My account is built from three components, or more strictly, from two components together with a certain conception of the way they are related to each other in the perception of music. My plan is to expound these components; to formulate the account built from them; to give some examples of what the account can explain; and to discuss very briefly its bearing on some classical issues about the perception of music.