This book is a fiftieth anniversary republication of Thomas Nagel's "What Is It Like to Be a Bat?", a classic in the philosophy of mind. Through its argument for the irreducible subjectivity of consciousness, it played an essential role in making the study of consciousness a central part of philosophy, psychology, and neuroscience. It also spurred the now flourishing scientific attention to the consciousness of non-human creatures: mammals, birds, fish, mollusks, and insects. The book also includes a second essay (...) offering Nagel's more recent thoughts on the most promising positive response to the mind-body problem, as posed in the original essay. (shrink)

Intuitively, there is a difference between knowledge and mere belief. Contemporary philosophical work on the nature of this difference has focused on scenarios known as “Gettier cases.” Designed as counterexamples to the classical theory that knowledge is justified true belief, these cases feature agents who arrive at true beliefs in ways which seem reasonable or justified, while nevertheless seeming to lack knowledge. Prior empirical investigation of these cases has raised questions about whether lay people generally share philosophers’ intuitions about these (...) cases, or whether lay intuitions vary depending on individual factors (e.g. ethnicity) or factors related to specific types of Gettier cases (e.g. cases that include apparent evidence). We report an experiment on lay attributions of knowledge and justification for a wide range of Gettier Cases and for a related class of controversial cases known as Skeptical Pressure cases, which are also thought by philosophers to elicit intuitive denials of knowledge. Although participants rated true beliefs in Gettier and Skeptical Pressure cases as being justified, they were significantly less likely to attribute knowledge for these cases than for matched true belief cases. This pattern of response was consistent across different variations of Gettier cases and did not vary by ethnicity or gender, although attributions of justification were found to be positively related to measures of empathy. These findings therefore suggest that across demographic groups, laypeople share similar epistemic concepts with philosophers, recognizing a difference between knowledge and justified true belief. (shrink)

Once symbolized by a burning armchair, experimental philosophy has in recent years shifted away from its original hostility to traditional methods. Starting with a brief historical review of the experimentalist challenge to traditional philosophical practice, this chapter looks at research undercutting that challenge, and at ways in which experimental work has evolved to complement and strengthen traditional approaches to philosophical questions.

Do epistemic intuitions tell us anything about knowledge? Stich has argued that we respond to cases according to our contingent cultural programming, and not in a manner that tends to reveal anything significant about knowledge itself. I’ve argued that a cross-culturally universal capacity for mindreading produces the intuitive sense that the subject of a case has or lacks knowledge. This paper responds to Stich’s charge that mindreading is cross-culturally varied in a way that will strip epistemic intuitions of their evidential (...) value. I argue that existing work on cross-cultural variation in mindreading favors my position over Stich’s. (shrink)

To what extent should we trust our natural instincts about knowledge? The question has special urgency for epistemologists who want to draw evidential support for their theories from certain intuitive epistemic assessments while discounting others as misleading. This paper focuses on the viability of endorsing the legitimacy of Gettier intuitions while resisting the intuitive pull of skepticism – a combination of moves that most mainstream epistemologists find appealing. Awkwardly enough, the “good” Gettier intuitions and the “bad” skeptical intuitions seem to (...) be equally strong. This chapter argues that it is not a coincidence that these two types of intuition register with equal force: they are generated by a common mechanism. However, the input to this mechanism is interestingly different in the two types of case, and different in a way that can support the mainstream view that Gettier cases tell us something about knowledge where skeptical intuitions involve systematic error. (shrink)

I. The Mind-Body Problem after Kripke This essay will explore an approach to the mind-body problem that is distinct both from dualism and from the sort of conceptual reduction of the mental to the physical that proceeds via causal behaviorist or functionalist analysis of mental concepts. The essential element of the approach is that it takes the subjective phenomenological features of conscious experience to be perfectly real and not reducible to anything else--but nevertheless holds that their systematic relations to neurophysiology (...) are not contingent but necessary. (shrink)

Factive mental states, such as knowing or being aware, can only link an agent to the truth; by contrast, nonfactive states, such as believing or thinking, can link an agent to either truths or falsehoods. Researchers of mental state attribution often draw a sharp line between the capacity to attribute accurate states of mind and the capacity to attribute inaccurate or “reality-incongruent” states of mind, such as false belief. This article argues that the contrast that really matters for mental state (...) attribution does not divide accurate from inaccurate states, but factive from nonfactive ones. (shrink)

In the Essay Concerning Human Understanding, Locke insists that all knowledge consists in perception of the agreement or disagreement of ideas. However, he also insists that knowledge extends to outer reality, claiming that perception yields ‘sensitive knowledge’ of the existence of outer objects. Some scholars have argued that Locke did not really mean to restrict knowledge to perceptions of relations within the realm of ideas; others have argued that sensitive knowledge is not strictly speaking a form of knowledge for Locke. (...) This chapter argues that Locke’s conception of sensitive knowledge is in fact compatible with his official definition of knowledge, and discusses his treatment of the problem of skepticism, both in the Essay and in the correspondence with Stillingfleet. (shrink)

Michael Bergmann’s important new book on scepticism is attractively systematic and thorough. He places familiar ideas under an exceptionally bright spotlight, e.

Because knowledge entails true belief, it is can be hard to explain why a given action is naturally seen as driven by one of these states as opposed to the other. A simpler and more radical characterization of knowledge helps to solve this problem while also shedding some light on what is special about social learning.

Curiosity is evident in humans of all sorts from early infancy, and it has also been said to appear in a wide range of other animals, including monkeys, birds, rats, and octopuses. The classical definition of curiosity as an intrinsic desire for knowledge may seem inapplicable to animal curiosity: one might wonder how and indeed whether a rat could have such a fancy desire. Even if rats must learn many things to survive, one might expect their learning must be driven (...) by simpler incentives, such as hunger. One might also wonder what proximal signals could guide animals towards knowledge itself, or how something as abstract as knowledge could ever be a motivational target for an unreflective animal. Taking a cue from recent work in reinforcement learning, I argue that surprise functions as a reward signal for the curious animal, and then show how this amounts to a desire for knowledge gain, where knowledge is conceived of as a cognitive adaptation to reality. This adaptation results in a mental state whose existence depends essentially on the truth of its contents, a factive mental state. Curious creatures benefit from an interaction between the prediction-error correction processes of basic learning and the active surprise-seeking force of their curiosity. This internally adversarial interaction accelerates knowledge gain in ways that are very helpful for agents with the restrictions of biological creatures, in environments with the complexity of our natural world. (shrink)

Over the past twenty-five years, Thomas Nagel has played a major role in the philosophico-biological debate on subjectivity and consciousness. This extensive collection of published essays and reviews offers Nagel's opinionated views on the philosophy of mind, epistemology, and political philosophy, as well as on fellow philosophers like Freud, Wittgenstein, Rawls, Dennet, Chomsky, Searle, Nozick, Dworkin, and MacIntyre.

For twenty-five years Eduard Fischer returned to the Trans-Himalayan region of Ladakh, enthralled by the unique culture of this ancient Buddhist kingdom, and seeking to catch just a glimpse of the elusive snow leopard. This is the tale of that quest, but also an exploration of myth, art, science, and the sacred space of high mountains.

The book makes a direct contribution to the connection between phenomenology and cognitive science.

This collection presents the English-language reader for the first time with essays that are representative of Bernstein's much-neglected revisionist period, 1901-1921. Bernstein himself suggested that this later work included significant new elements, indicating further progress in his liberal-socialist theory. Bernstein's later work acquires additional significance in light of the events of 1989, which have discredited not only Marxism-Leninism, but revolutionary Marxist theory in general, thus making the reevaluation of Bernstein's revisionism a worthwhile experience.

"Allerdings, das ist eine grosse Frage, der ich zu sehr ausgewichen bin, die Evidenz des Ich als ein Identisches, das also doch nicht in dem Bündel bestehen kann." (Husserl, 1907) Bekanntlich verwirft Husserl in den Logischen Untersuchungen die Auffassung, "dass die Beziehung auf das Ich etwas zum we sentlichen Bestande des intentionalen Erlebnisses selbst Gehöriges sei'',! und bildet um 1907, nach Einführung der phänomenolo gischen Reduktion, "die Beziehung auf das Ich zu unterlassen, oder von ihr zu abstrahieren" geradezu die Bedingung, (...) ein "reines Phänomen im Sinne der Phänomenologie" 2 zu gewinnen. Und bekanntlich heisst es demgegenüber in den Ideen von 1913: "Unter den allgemeinen Wesenseigentümlichkeiten des tran szendental gereinigten Erlebnisgebietes gebührt eigentlich die erste Stelle der Beziehung auf das,reine' Ich",3 und revidiert Husserl in der zweiten Auflage der Logischen Untersuchungen von 4 1913 seine Stellungnahme zur Frage des reinen Ich. Weniger bekannt ist bisher, wie Husserl auf seinem Denkweg von der einen zur anderen Stellungnahme zum Problem des Ich gekommen ist. Was bewegte ihn, das "Ich" in die phänomeno logische Problematik einzubeziehen? Zu vermuten war, dem Wandel in der Stellung zum Problem des Ich liege ein Wandel im Verständnis der Phänomenologie selbst zugrunde. Welche Phänomene motivierten, auf dem phänomenologischen Boden selbst, die Einbeziehung des Ich? Vor allem dieser Frage gehen wir, unter Berücksichtigung des Nachlassmaterials des Husserl Archivs (Leuven), in unserer Studie nach. (shrink)

"Like Hanslick, Professor Payzant is both musician and philosopher; and he has brought the knowledge and insights of both disciplines to this large undertaking." --Gordon Epperson, _Journal of Aesthetics and Art Criticism_.

This paper critiques Rothbard’s concept of gross investment. Rothbard introduced the concept in order to demonstrate his point that it is not consumer spending that primarily drives the economy, like the mainstream Keynesian view maintains, but the capitalists’ spending. In this paper, it is argued that, contrary to Rothbard’s opinion, the amount of gross investment as he defines it does not contain significant information concerning the question as to whether the capital structure of a society can be upheld or not. (...) Instead, it is an arbitrary figure that depends on the length of the different stages of production. This problem has not been recognized by Rothbard because his exposition rests upon the assumption of an equal time length for all stages. Apparently, he has been led astray by his intention to find arguments against the importance of consumer spending in the determination of output. (shrink)

A reproducibility principle is formulated and adopted as the guiding criterion for the acceptance of an experimental procedure as a simultaneous measurement of several observables. It is pointed out that this criterion can be applied to classical as well as quantum physics, and that it incorporates compatible as well as incompatible observables. The concept of fuzzy probability measure is presented as a possible mathematical tool for the description of statistical processes involving measurements of incompatible observables.

A notion of quantum space-time is introduced, physically defined as the totality of all flows of quantum test particles in free fall. In quantum space-time the classical notion of deterministic inertial frames is replaced by that of stochastic frames marked by extended particles. The same particles are used both as markers of quantum space-time points as well as natural clocks, each species of quantum test particle thus providing a standard for space-time measurements. In the considered flat-space case, the fluctuations in (...) coordinate values with respect to stochastic frames are described by coordinate probability amplitudes related to irreducible stochastic phase space representations of the Poincaré group. Lagrangian field theory on quantum space-time is formulated. The ensuing equations of motion for interacting fields contain no singularities in their nonlinear terms, and therefore can be handled by methods borrowed from classical nonlinear analysis. (shrink)