Abstract: What is it like to be a bat? This is one of the most famous questions ever asked in the history of consciousness studies. First posed in 1950 it was made famous in a 1974 paper of that name by American philosopher Thomas Nagel. Nagel argued that understanding how mental states can be neurons firing inside the brain is a problem quite unlike understanding how water canbe H2O, or how genes can be DNA. 'Consciousness is what makes the mind-body problem really intractable,' he said (Nagel, 1974: 435; 1979:165), and by consciousness he meant subjectivity. To make this clear he asked 'What is it like to be a bat?'. Do you think that your cat is conscious? Or the birds outside in the street? Perhaps you believe that horses are conscious but not worms, or living creatures but not stones. We shall return to these questions (Chapter 12) but here let's consider what it means to say that another creature is conscious. If you say that the stone is not conscious you probably mean that it has no inner life and no point of view; that there is nothing it is like to be the stone. If you believe that the neighbour's vicious bloodhound, or the beggar you passed inthe subway, is conscious, then you probably mean that they do have a point of view; there is something it is like to be them. As Nagel put it, when we say that another organism is conscious we mean that 'there is something it is like to be that organism . . . something it is like for the organism' (1974: 436); 'the essence of the belief that bats have experience is that there is something that it is like to be a bat' (ibid.: 438). This is probably the closest we can come to a definition of consciousness - that consciousness is subjectivity, or 'what it is like to be . . .'. Here we must be careful with the phrase 'what it is like . . .'. Unfortunately there are at least two meanings in English. We might say 'this ice cream tastes like rubber' or 'lying on a beach in the sun is like heaven'. In this case we are comparing things, making analogies, or saying what they resemble. This is not what Nagel meant. The other meaning is found in such questions as: What is it like to work at McDonald's? What is it like to be able to improvise fugues at the keyboard?...to be someone inconceivably more intelligent than yourself?...to be a molecule, a microbe, a mosquito, an ant, or an ant colony? (Hofstadter and Dennett, (1981: 404-5), pose many more such provocative questions.) In other words, what is it like from the inside? Now, imagine being a bat. A bat's experience must be very different from that of a human. For a start the bat's sensory systems are quite different, which is why Nagel chose the bat for his famous question. Bats' brains, lives and sensesare well understood (Akins, 1993; Dawkins, 1986). Most use either sound or ultrasound for echolocation. That is, they detect objects by emitting rapid high-pitched clicks that bounce off any objects in the vicinity and then measuring the time taken for the echo to return. Natural selection has found ingenious solutions to the many interesting problems posed by echolocation. Some bats cruise around emitting clicks quite slowly so as not to waste energy, but then when they are homing in on prey or approaching a potential danger, they speed up. Many have mechanisms that protect their ears from the loud blastof each click and then open them to receive the faint echo. Some use the Doppler shift to work out their speed relative to prey or other objects. Others sort out the mixed-up echoes from different objects by emitting downward-swooping sounds. The echoes from distant objects take longer to come back and therefore sound higher than the echoes from nearer objects. In this way we can imagine that a whole bat world is built up in which higher sounds mean distant objects and lower sounds mean nearer objects. What would this be like? According to Oxford biologist Richard Dawkins (1986; see Profile, Chapter 10), it might be like seeing is for us. We humans do not know, or care, that colour is related to wavelength or that motion detection is carried out in the visual cortex. We just see the objects out there in depth and colour. Similarly the bat would just perceive the objects out there in depth, and perhaps even in some batty, sonar, version of colour. Living in this constructed world would be what it is like to be the bat. But can we ever know what it would really be like for the bat? As Nagel pointed out, the question is not answered by trying to imagine that you are a bat. This will not do. It is no good hanging upside down in a darkened room, making little clicks with your tongue and flapping your arms like wings. Perhaps if you could magically be transformed into a bat you would know. But even this won't do. For if you were a bat, the bat in question would notbe an ordinary bat - what with having your memories and your interest inconsciousness. But if you became an ordinary bat then this bat would have no understanding of English, no ability to ask questions about consciousness, and could not tell us what it was like. So we cannot know what it is like to be a bat even if we believe that there is something it is like to be a bat. Nagel's question clarifies the central meaning of the term 'consciousness'. It is what the American philosopher Ned Block (1995) calls 'phenomenal consciousness' or phenomenality. He explains that 'Phenomenal consciousness isexperience; what makes a state phenomenally conscious is that there is something 'it is like' to be in that state.' He distinguishes this from 'access consciousness', which is 'availability for use in reasoning and rationally guiding speech and action' (Block, 1995: 227). We will return to this distinction (Chapter 18), and consider issues to do with availability, but 'phenomenal consciousness' is what this book is all about. So what is it like to be you now? Everything I have said so far implies that there is, uncontroversially, something it is like to be you now - that the problems only begin when you start asking about what it is like to be someone orsomething else. But is this right? A thoroughly sceptical approach would meanquestioning even this. I urge you to do this chapter's 'Practice' and become a little more familiar with what it is like to be you.

Abstract: In (Chalmers, 1996), David Chalmers influentially argued that if physicalism is true then every positive truth is a priori entailed by the full physical description—this is called 'the a priori entailment thesis'. However, ascriptions of phenomenal consciousness are not so entailed and thus he concludes that Physicalism is false. As he puts it, 'zombies' are metaphysically possible. I attempt to show that this argument is refuted by considering an analogous argument in the mouth of a zombie. The conclusion of this argument is false so one of the premises is false. I argue at length that this shows that the original conceivability argument also has a false premise and so is invalid.

Abstract: As organ shortages have become more accute, support for a market in organs has steadily increased. Whilst many have argued for such a market, it is Gerald Dworkin who most persuasively defends its ethics. As Dworkin points out, there are two possibilities here - a futures market and a current market. I follow Dworkin in focusing on a current market in the sale of organs from living donors, as this is generally considered to be the most difficult to justify. One of the most pressing concerns here is that such a market will exploit the poor. I outline this concern and scrutinise Dworkin's and others' rejection of it. Briefly, I argue that the arguments Dworkin employs for allowing the poor to sell their organs fail, and in fact better support an argument for increasing aid to the needy.

Publisher's Note: Kant's Critique of Judgment has often been interpreted by scholars as comprising separate treatments of three uneasily connected topics: beauty, biology, and empirical knowledge. Rachel Zuckert's book interprets the Critique as a unified argument concerning all three domains. She argues that on Kant's view, human beings demonstrate a distinctive cognitive ability in appreciating beauty and understanding organic life: an ability to anticipate a whole that we do not completely understand according to preconceived categories. This ability is necessary, moreover, for human beings to gain knowledge of nature in its empirical character as it is, not as we might assume it to be. Her wide-ranging and original study will be valuable for readers in all areas of Kant's philosophy.

Abstract: In this paper I distinguish three degrees of epistemic egoism, each of which has an ethical analogue, and I argue that all three are incoherent. Since epistemic autonomy is frequently identified with one of these forms of epistemic egoism, it follows that epistemic autonomy as commonly understood is incoherent. I end with a brief discussion of the idea of moral autonomy and suggest that its component of epistemic autonomy in the realm of the moral is problematic.

Abstract: Proposes an analysis of the concept of understanding. Finds three important, relevant strands of thought in the works of Plato and Aristotle, among which the most important one is that understanding involves representing the world nonpropositionally, e.g. through visualization or diagrams. Taking this to be the defining characteristic, proposes that understanding is a state of comprehending nonpropositional structures of reality, such as automobiles, pieces of music or art, the character of a person, or a causal nexus. Argues that virtue epistemology is better suited than traditional epistemology to help us develop a successful analysis of understanding thus conceived. For unlike the theories from which it departs, virtue epistemology takes the objects of valuable epistemic states to consist of both propositional and nonpropositional objects.

Publisher's Note: In this book Zagzebski gives an extended argument that the self-reflective person is committed to belief on authority. Epistemic authority is compatible with autonomy, but epistemic self-reliance is incoherent. She argues that epistemic and emotional self-trust are rational and inescapable, that consistent self-trust commits us to trust in others, and that among those we are committed to trusting are some whom we ought to treat as epistemic authorities, modeled on the well-known principles of authority of Joseph Raz. These principles apply to authority in the moral and religious domains

Abstract: Pluralism in ethics, as I understand it, is the view that there is an irreducible plurality of values or principles that are relevant to moral judgment. While the utilitarian says that all morally significant con- siderations can be reduced to quantities of pleasure and pain, and the Kantian says that all moraljudgment can be reduced to a single principle having to do with respect for rationality and the bearers of rationality, the pluralist insists that morality is not at the fundamental level so simple. Moreover, as many use the term, and as I shall use it in this essay, the pluralist believes that the plurality of morally significant values is not subject to a complete rational ordering. Thus, it is held that no principle or decision procedure exists that can guarantee a unique and determinate answer to every moral question involving a choice among different fundamental moral values or principles. My aim in this article is not to argue for the truth of ethical pluralism but, rather, to explore some implications of its truth, or even of the self-conscious recognition of the possibility of its truth. Specifically, I shall argue that pluralism, or, indeed, even the possibility of pluralism, has implications for the way we understand issues concerning moral objectivity and moral relativism, as well as implications for the positions we take on them. I shall begin by sketching a common pattern of thought about these issues.

Abstract: Plato claims that representational art is dangerous because of its deceptive nature. He thinks that those who indulge too much in imitation will eventually have problems differentiating between imitation and reality. Aristotle, on the other hand, believes that indulging oneself in imitation (specifically theatrical tragedy) is healthy if the experience produces a catharsis - which would help one function better in real life. There has been a long-standing debate between these two positions on representation, both of them still having different strengths even when applied to contemporary situations. Ancient theories often hold special value when they continue to help us understand current issues, but what would Plato make of an IMAX film? Would Aristotle claim the same kind of catharsis could result from virtual reality, as a tragedy presented on the stage in ancient Greece? In what follows, I will use the theories of Plato and Aristotle as a foundation, and then move on to describe the changing nature of representation in order to explain how different kinds of media can affect our understanding of representation and our responses to it. Plato and Aristotle introduced the difficult moral and epistemological questions that result from the differentiation between reality and mimesis, or representation. Although there are still problems in explaining our real reactions to represented events, one aspect of the problem has changed significantly in the 20thcentury: the media through which the fictions or representations are presented. The changing nature of the media of fictional discourse calls for a reexamination of the theory we employ in understanding these experiences. In order to understand what effect the changing nature of the media has on these experiences, I will explore two other topics that will help clarify both the problems and the solutions. First, the changing concepts of what count as 'mimetic' and what count as 'fictional' need to be clarified in order that we know the kinds of discourses with which we are dealing. The Greek term mimesis, however, needs to be unpacked into the current terminology to account for the different aspects of representation, narrative, and fiction. Second, I will provide a general explanation of how fiction affects its readers according to current aesthetic theory as compared to ancient theory. Having dealt with these preliminary concerns, I will then argue that the changing nature of the media of representation changes the explanations of our experiences of fiction, which have been accounted for by earlier theory. I will argue further that these responses may in fact be more dependent upon the quality of the narrative structure of the fiction than the mode or media through which it is presented.

Abstract: My strategy is to examine a recent trend in philosophical discussions of responsibility, a trend that tries, but I think ultimately fails, to give an acceptable analysis of the conditions of responsibility. It fails due to what at first appear to be deep and irresolvable metaphysical problems. It is here that I suggest that the condition of sanity comes to the rescue. What at first appears to be an impossible requirement for responsibility---the requirement that the responsible agent have created her- or himself---turns out to be the vastly more mundane and non controversial requirement that the responsible agent must, in a fairly standard sense, be sane.