It seems almost a truism to say that colour is a sensation; and yet Young, by honestly recognizing this elementary truth, established the first consistent theory of colour. So far as I know, Thomas Young was the first who, starting from the well-known fact that there are three primary colours, sought for the explanation of this fact, not in the nature of light, but in the constitution of man. (James Clerk Maxwell, p. 267.)It is doubtless scientific to disregard (...) certain aspects when we work; but to urge that therefore such aspects are not fact, and that what we use without them is an independent real thing-this is barbarous metaphysics. (F. H. Bradley, p. 15.). (shrink)

Scholarship on Aristotle’s theory of visual perception has traditionally held that Aristotle had a single, static, conception of light and that he believed that illumination occurred prior to and independent of the actions of colours. I contend that this view precludes the medium from becoming actually transparent, thus making vision impossible. I here offer an alternative to the traditional interpretation, using contemporary conceptual tools to make good philosophical sense of Aristotle’s position. I call my view the ‘ecological’ (...) interpretation. It postulates two conceptions of light: non-visible mobile propagated light and visible static illumination produced by the interaction of propagated light with the environment’s coloured textured surfaces. I argue that these contemporary conceptual tools can find a foothold in and consistently enrich Aristotle’s extant position and that, with their aid, we can restore coherence to his theories of light and vision. (shrink)

Ennead IV 5[29] has been poorly served by translators and commentators, misreporting what Plotinus wrote and, with these mangled results, asserting that this part of his treatise on the “Problems about the Soul” is merely a disjointed series of doxographical fragments with little compelling contribution to make. More careful translation and analysis reveal something strikingly different and original. First, he gives a cogent critique of the theories of Plato and Aristotle concerning the body between and the role of daylight. Second, (...) he substitutes his own account in terms of both sympathy and the principle of two acts, explaining vision both during the day as well as at night, notably deficient in previous accounts. Third, he derives some surprisingly original corollaries about the nature of light and the source of color. (shrink)

The somewhat deflating conclusion of Simon A. Gilson's meticulous examination of Dante's incorporation of the science of optics and theories of light is that the poet was considerably less well read than we have been giving him credit for.Gilson's book is divided into two parts: the first, dealing with the science of optics, contains four chapters; the second, dealing with theories of light, contains three. Each of these parts is devoted to debunking a tendency in Dante scholarship to (...) attribute to a particular scientific or philosophical movement a marked influence on his work. In the first part Gilson maintains that Dante's use of the science of optics does not—as others, most forcefully and influentially Alessandro Parronchi, have argued—rely specifically on knowledge of the authors of the perspectivae—detailed treatises on optics that placed the influence of light rays at the origin of terrestrial phenomena—that is, on such thinkers as Alhazen, Roger Bacon, and Robert Grosseteste. Rather, Gilson contends that Dante could easily have come by the requisite expertise concerning this science through contact with the more popular and widely known doctrines of such Arab interpreters of Aristotle as Avicenna and Averroës and the commentaries of Albert the Great and Thomas Aquinas. He demonstrates the plausibility of this contention by way of a comparative analysis of the doctrines of the perspectivists and the Arab interpreters. This analysis is followed by a chapter devoted to optics and vision in Dante's earlier poetry.The two following chapters cover, respectively, topics such as blinding, optical illusions, and visual error in Dante's Commedia and the themes of reflection, mirrors, and meteorological optics, also in the Commedia, a work that Gilson specifies as having nevertheless gone beyond the more limited sources of the earlier poetry. In the third chapter Gilson's analysis achieves a welcome degree of insight into the poet's originality: here Gilson shows how Dante incorporates the scientific knowledge of his day in order to establish a set of limits that circumscribe human action in the physical world but that must be overcome in the course of the pilgrim's journey through his imaginative world. Such moments provide a refreshing alternative to an otherwise rather positivistic view of scientific knowledge as a compendium of facts and sources one either has or has not read. One cannot help but think that researchers in the field of the history of science might be most interested in the imaginative contributions of a specifically poetic knowledge, especially in an age in which the distinction between “hard” and “soft” science was not accorded the kind of unquestioned respect it currently receives.In the second part Gilson, continuing his debunking analysis, argues that the scholarship on Dante and his use of theories of light has remained captivated by the notion of “the metaphysics of light.” This term, Gilson claims, has been used to unify and oversimplify a rather diverse group of doctrines concerning the nature of light and its relation to knowledge, vision, God, and being. Against the grain of the traditional critical trend, Gilson maintains that Dante's thought has nothing in common with the proper metaphysics of light of a Grosseteste—who identifies light as the primary element of being—and that Dante would have had relatively little contact with Neoplatonic theories of emanation. Again, according to Gilson, in applying the imagery of light to his poetic themes, Dante would have had readily available models in the popular theological light imagery of his time; his use of light in the description of the Empyrean is, Gilson states, perhaps the best example of Dante's relative independence from any limited set of sources.Whether Gilson's informative examination of Dante's relative dependence on sources should be understood as liberating the poet from the anxiety of scientific influence remains, however, an open question. Whatever the extent or depth of any enumeration of those sources, it is the moment of creation that astonishes. (shrink)

Al-Kindi was influenced by two Greek traditions in his attempts to explain vision, light and color. Most obviously, his works on optics are indebted to Euclid and, perhaps indirectly, to Ptolemy. But he also knew some works from the Aristotelian tradition that touch on the nature of color and vision. Al-Kindi explicitly rejects the Aristotelian account of vision in his De Aspectibus, and adopts a theory according to which we see by means of a visual (...) ray emitted from the eye. But in the same work, al-Kindi draws on Philoponus. (shrink)

In this book Gerald Vision argues for a new causal theory, one that engages provocatively with direct realism and makes no use of a now discredited subjectivism.

The article deals with the problem of the divine light in the mystical works of St Symeon the New Theologian in the context of the Eastern Christian ascetical tradition. The author focuses on the passages referring to the divine light in the works of Evagrios Pontikos, St Isaac the Syrian, St Maximus the Confessor, and in the Makarian corpus. As is shown in the present contribution, none of these authors created a fully-developed theory of the vision (...) of the divine light. Being close to these writers in many ideas, St Symeon was generally independent of any of them in his treatment of the theme of vision of light, always basing himself primarily upon his own experience. (shrink)

In Veritas, Gerald Vision defends the correspondence theory of truth -- the theory that truth has a direct relationship to reality -- against recent attacks, and critically examines its most influential alternatives. The correspondence theory, if successful, explains one way in which we are cognitively connected to the world; thus, it is claimed, truth -- while relevant to semantics, epistemology, and other studies -- also has significant metaphysical consequences. Although the correspondence theory is widely held (...) today, Vision points to an emerging orthodoxy in philosophy that claims that truth as such carries no significant weight in philosophical explanations. He devotes much of the book to a criticism of that outlook and to a less vulnerable formulation of the correspondence theory.Vision defends the correspondence theory by both presenting evidence for correspondence and examining the claims made by such alternative theories as deflationism, minimalism, and pluralism. The techniques of the argument are thoroughly analytic, but the problem confronted is broadly humanistic. The question examined -- how we, as thinking beings, are connected to and manage to cope in a world that was not designed for our comfort or convenience -- is more likely to be raised by continentalists, but is approached here with the tools of clarity and precision more highly prized in analytic philosophy. The book seeks to avoid both the obscurantism that infects much continental thought and the overly technical concerns and methodology that limit the interest of much work in analytic philosophy. It thus provides a rigorous but largely nontechnical treatment of the topic that will be of interest not only to readers familiar with philosophy but also to those with a background in literary theory and linguistics. (shrink)

A curious irony hangs over the two similes of the lantern and the clepsydra which Empedocles used to describe his theories of seeing and breathing. Similes were a feature of Empedocles' style, and it is clear that on these two in particular he has lavished considerable care. They have been preserved in their entirety, as almost the longest continuous quotations which Aristotle makes from any author. Despite such auspicious beginnings, these two similes have proved peculiarly resistant to modern attempts at (...) interpretation. The reason for this, I shall try to show, is that certain features in the two similes took on a spurious significance as a result of Plato's remodelling of Empedocles' theories. Difficulties of interpretation have been caused by trying to read back these innovations of Platonic theory into details of the similes that in their original context were fortuitous and inessential.In Plato vision occurs when fire leaves the eye and joins fire outside to form a single compacted body, along which movements from the visible object are communicated as sensations to the eye.According to Theophrastus, Empedocles explained vision as the result of effluences which are given off from objects and enter the appropriate pores of the eye. Dark effluences enter the watery pores of the eyes, and bright effluences enter the fiery pores of the eye. As I have tried to show in an earlier article, Empedocles distinguished good and bad vision, by day and by night, for eyes with a predominance of fire and for eyes with a predominance of water. Good vision results when the dark and light elements which enter the eye are equally balanced. Poor vision results either when there is too much fire in the eye, so that we are dazzled, or when there is too much water in the eye, so that our vision is dimmed. In the whole of his detailed and one would have thought exhaustive account, Theophrastus says nothing about fire leaving the eye as a factor in the act of vision. (shrink)

By "transparency" with respect to Berkeley's theory of signs, I mean the notion that because of the often close association between signs and what they signify, we mistakenly think we sense what is signified by the sense that accesses the sign. I argue that although this makes sense for some examples, for a variety of reasons it's not really applicable to Berkeley's claim that we mistakenly think we immediately see distance ('outness') when we, in fact, immediately see only (...) class='Hi'>light and colors. (shrink)

Although a number of truth theorists have claimed that a deflationary theory of ‘is true’ needs nothing more than the uniform implication of instances of the theorem ‘the proposition that p is true if and only if p ’, reflection shows that this is inadequate. If deflationists can’t support the instances when replacing the biconditional with ‘because’, then their view is in peril. Deflationists sometimes acknowledge this by addressing, occasionally attempting to deflate, ‘because’ and ‘in virtue of’ formulas and (...) their close relatives. I examine what I take to be the most promising deflationist moves in this direction and argue that they fail. (shrink)

Using everyday language, spatial concepts, visualizations and his renowned "Feynman diagrams," the author clearly and humorously communicates the substance and spirit of QED (quantum electodynamics).

Whereas it appears that direct, or causal, theories dominate philosophy’s theories of reference, and it is widely held that they present an insuperable obstacle for a fictional character’s name to refer, I attempt to show not only that they can be easily made compatible with such theories, but that reference to the fictional fits rather smoothly into the distinctive articles of current theories of direct reference. However, the issues about reference to fictional characters goes well beyond those points, so its (...) compatibility with direct referential theories is not a demonstration that names of fictional things in fact refer. This essay argues only that certain popular objections to fictional reference are unsound. Moreover, if those references were to occur, it would remove a serious self-inflicted conundrum over negative existentials, one from which those raising it seem unable to extract themselves credibly. (shrink)

Selectional preferences have a long history in both generative and computational linguistics. However, since the publication of Resnik's dissertation in 1993, a new approach has surfaced in the computational linguistics community. This new line of research combines knowledge represented in a pre‐defined semantic class hierarchy with statistical tools including information theory, statistical modeling, and Bayesian inference. These tools are used to learn selectional preferences from examples in a corpus. Instead of simple sets of semantic classes, selectional preferences are viewed (...) as probability distributions over various entities. We survey research that extends Resnik's initial work, discuss the strengths and weaknesses of each approach, and show how they together form a cohesive line of research. (shrink)

From the popular view that the property of truth adds nothing not already inherent in its bearers it has been inferred that classical theories of truth are thereby refuted. Taking as representative a version of deflationism based on a certain way of interpreting the Tarskian schema convention T–and popularly called "disquotational"–I argue that the view is beset by fatal difficulties. These include: an unavoidable awkwardness in handling indexicals; an inability to accept anything more than a too anemic notion of a (...) truth condition, leaving it defenseless against clearly inadequate alternatives; and an incapacity to show that its characteristic biconditional can support any acceptable dependency claims (made evident by replacing the biconditional with 'because'). Finally, were there no predicate on the order of 'is true', this would not annihilate the property of being true or the current grounds for philosophical inquiries about it. This is an important clue to why deflationary approaches in general are dead ends. (shrink)

J. Baird Callicott has thrown down the gauntlet once again in the monism?pluralism debate in environmental ethics. In a recent article he argues that his ?communitarianism? (combined with a limited intertheoretic pluralism) is sufficient to get the advantages of pluralism advocated by his critics, while at the same time retaining the framework of moral monism. Callicott's attempt to set the record straight on the monism?pluralism debate has once again derailed us from answering the most important question in this discussion: how (...) do we achieve a compatibilism among ethical theories which will inform better environmental practices? But if Callicott got it wrong, then who is getting it right? Arne Naess, whose work has heretofore been excluded from the mainstream discussion of this issue, has all along understood the heart of the monism?pluralism question. This paper updates the current state of the monism?pluralism debate, provides an answer to Callicott's latest challenge, and advances the thesis that all involved in this argument would do well to take a look at what Naess has to say on this issue. (shrink)

In the past thirty years environmental ethics has emerged as one of the most vibrant and exciting areas of applied philosophy. Several journals and hundreds of books testify to its growing importance inside and outside philosophical circles. But with all of this scholarly output, it is arguably the case that environmental ethics is not living up to its promise of providing a philosophical contribution to the resolution of environmental problems. This article surveys the current state of the field and offers (...) an alternative path for the future development of environmental ethics toward a more publicly engaged model of applied philosophy. (shrink)

Philosophers and geographers have converged on the topic of public space, fascinated and in many ways alarmed by fundamental changes in the way post-industrial societies produce space for public use, and in the way citizens of these same societies perceive and constitute themselves as a public. This volume advances this inquiry, making extensive use of political and social theory, while drawing intimate connections between political principles, social processes, and the commonplaces of our everyday environments.

Philosophers and geographers have converged on the topic of public space, fascinated and in many ways alarmed by fundamental changes in the way post-industrial societies produce space for public use, and in the way citizens of these same societies perceive and constitute themselves as a public. This volume advances this inquiry, making extensive use of political and social theory, while drawing intimate connections between political principles, social processes, and the commonplaces of our everyday environments.

_ _ _Environmental Ethics: An Anthology_ brings together both classic and cutting-edge essays which have formed contemporary environmental ethics, ranging from the welfare of animals versus ecosystems to theories of the intrinsic value of nature.

Interjections, such as those in the title, together with a few similar devices, when qualifying clauses expressing truth-conditions, or that such conditions have been satisfied, are entitled 'force-amplifiers'. Disputes between deflationary and inflationary truth-theories sometimes are assumed to turn on the supposed pivotal role that these devices are construed as playing in the interpretation of the clauses they qualify. I argue that they are not dispensable add-ons. Moreover, even in their absence the relevant clauses giving truth-conditions permit interpretations that are (...) not deflationary-friendly. I maintain that this is a significant fact about the use to which writers put them. I then defend, a thesis about force-amplifiers that makes them indispensable to the interpretation of the relevant clauses, and that renders certain moves unavailable to popular deflationist treatments. (shrink)

I defend the view that justified belief is preferable to plain belief only because the former enhances the likelihood that the belief is true: call that sort of justification truth-linked. A collection of philosophical theories either state outright that this is not so, imply it via other doctrines, or adopt a notion of truth that renders the link innocuous. The discussion proceeds as follows. Issues and various positions are outlined, and needed qualifications are entered (parts I-III). We then note general (...) shortcomings of all views rejecting the truth-link, and critically examine a powerful thought experiment underlying the rejection (part IV). In the final sections we explore two other challenges to the truth-link. First (part V), we consider forms of idealized justification theory that would imply the independence of justification from the relevant sort of truth conduciveness; next (part VI) we investigate a view, Pragmatism, which maintains that epistemic justification is sanctioned by ends other than a tendency towards truth. (shrink)

How do we ready ourselves to intervene responsively in the contingent situations that arise in co-designing to make change? How do we attune to group dynamics and respond ethically to unpredictable developments when working with 'community'? Participatory Design can contribute to social transitions, yet its focus is often tightly tuned to technique for designing ICT at the cost of participatory practice. We challenge PD conventions by addressing what happens as we step into a situation to alter it with others, an (...) aspect of practice that cannot be replicated or interchanged. We do so to argue that practices of readiness are constituted by personal histories, experiences, philosophies and culture. We demonstrate this political argument by giving reflexive accounts of our dimensions of preparation. The narratives here are distinct, yet reveal complementary theories and worldviews that shape PD ontologies. We have organized these around the qualities of punctuation and poise as a way to draw out some less easily articulated aspects of PD practice. (shrink)

데카르트가 탐구한 빛과 시각의 문제는 우주론이나 자연학 나아가 근대적 지각 이론에서 핵심적인 역할을 하고 있다. 데카르트는 전통적인 자연철학을 대체할 수 있는, 물체와 지각에 관한 새로운 설명방식이 필요하다고 생각하였다. 데카르트는 개별 현상이 아니라 ‘자연의 모든 것들’을 설명하고자 하였고 이는 ‘완전한 자연학’을 목표로 한 것이었다. 이 완전한 자연학을 위한 논고는 『세계 또는 빛에 관한 논고』였다. 그것은 빛을 중심으로 한 세계에 관한 논고였으며 이것은 데카르트가 생각하는 새로운, 근대적 자연에 대한 이해를 보여준다. 이것은 새로운 우주와 세계를 해설하는 근대적인 자연학을 위한 보편적인 체계를 제시하는 것이다. (...) 자연은 더 이상 우리에게 날 것으로 주어지는 현상세계의 총체적 덩어리가 아니라 표상될 수 있는 지각의 형태로 정의될 수 있다. 『세계』를 이어 『굴절광학』은 그가 빛과 시각에 관해 논의한 핵심작품으로, 특히 시각과 관련된 데카르트 고유의 감각지각 또는 지각 일반에 대한 논의를 이해하는 데 큰 역할을 하고 있다. 자연철학의 관점에서 아리스토텔레스 철학에 기초해 후기 스콜라철학까지 이어온 목적론적 자연관을 극복하고 기하학적 자연관과 기계론적 철학의 이론적 토대를 제공하게 된다. 데카르트는 광학을 통해 통합과학의 전망에서 우주와 세계에 대한 완전한 자연학을 위한 고유의 이론적 기초를 제시한다. 여기서 더 나아가 데카르트의 시각이론은 실체적 연합으로서의 인간에 대한 이해를 기초로 감각지각의 의미를 이해하는 데 중요한 역할을 한다. 감각지각은 대상과 닮지 않는다. 하나의 기호로서 인간의 건강과 생존을 위한 기능을 수행한다. (shrink)

Environmental Ethics: An Anthology brings together both classic and cutting-edge essays which have formed contemporary environmental ethics, ranging from the welfare of animals versus ecosystems to theories of the intrinsic value of nature.

Can we use technology in the pursuit of a good life, or are we doomed to having our lives organized and our priorities set by the demands of machines and systems? How can philosophy help us to make technology a servant rather than a master? Technology and the Good Life? uses a careful collective analysis of Albert Borgmann's controversial and influential ideas as a jumping-off point from which to address questions such as these about the role and significance of technology (...) in our lives. Contributors both sympathetic and critical examine Borgmann's work, especially his "device paradigm" apply his theories to new areas such as film, agriculture, design, and ecological restoration and consider the place of his thought within philosophy and technology studies more generally. Because this collection carefully investigates the issues at the heart of how we can take charge of life with technology, it will be a landmark work not just for philosophers of technology but for students and scholars in the many disciplines concerned with science and technology studies. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Ethics & the Environment 7.1 (2002) 102-108 [Access article in PDF] Symposium IntroductionEric Katz's Nature As Subject Andrew Light Can and should we distinguish between nature and culture? The question has become a perennial one in environmental ethics, as well as in allied fields in environmental history, sociology, and politics. And just when we think it is settled—as many did after William Cronon's famous deconstruction of wilderness in (...) 1995—and it feels safe to go back into the metaphysical waters of environmental philosophy, such issues pop up again to send us running.What follows extends this debate in the context of Eric Katz's well-known work in environmental ethics. Brought together here are Katz and two critics sympathetic to his positions, Wayne Ouderkirk and Ned Hettinger. While the occasion for the exchange was the publication of Katz's book, Nature as Subject: Human Obligation and Natural Community (1997), which collects his papers from 1979 to 1996, the focus quickly became somewhat narrower, centering on possible problems with Katz's ontological dualism between natural and artifactual entities.Katz has exerted a strong influence on the development of environmental ethics, particularly through his persistent arguments for a distinction between individualist and holist approaches to obligations to the nonhuman natural world and his metaphysical and moral critique of attempts [End Page 102] by humans to create, repair, or restore nature. While these positions continue to be on display here, there is also something more. In this exchange Katz throws down the gauntlet on his nature-culture dualism, admitting at the start that the accusation is true. Like the Protestants in Monty Python's The Meaning of Life, he is a dualist—and fiercely proud of it! Despite whatever misgivings I or others may have about this position, I believe that in making this claim, Katz, similar to David Chalmers's open embrace and resuscitation of dualism in philosophy of mind, has done us a great service. For it is arguably true that many environmental philosophers, along with other academics, have settled into a complacent "labeling as argument" pattern. If we can label a position as "dualist" or "essentialist," then our work is done. But surely not every form of dualism is necessarily wrong, even if, as Ouderkirk reminds us in his reading of Val Plumwood's work, the logic of many forms of dualism has tended toward a pernicious pattern. Arguments are needed in both directions. If nature-culture dualism is mistaken or wrongheaded, or leads to unfortunate conclusions, then we must know why; if dualism is the only way to make sense of the hurdles presented to us in coming to a better understanding of the value of nature and culture then we must know why as well. And further, because many in the field have assumed a nature-culture dualism without admitting to it, we can admire that Katz chooses to "fess up" and finally put the issue squarely on the table.If this is the road we are heading down with this particular exchange, then we are off to a good start. Both critics of Katz do a thorough job of pressing home their arguments, rather than only pointing accusatory fingers. Ned Hettinger, in "The Problem of Finding a Positive Role for Humans in the Natural World," avoids using the term "dualism," but nonetheless argues that Katz has a tendency to "rigidly dichotomize the natural/artifactual distinction." Additionally, Hettinger argues that Katz tends to overlook his own admission that the differences between nature and artifacts admit to degrees rather than a strict dualism. Hettinger focuses the bulk of his critique on the unfortunate upshot of such a position: given such a distinction, there is little if any place for a positive role for human intervention in nature, or for a philosophical contribution to the formation of better environmental policies.Wayne Ouderkirk, in "Katz's Problematic Dualism and its 'Seismic' Effects on His Theory," is sympathetic with Katz's intuitions that some distinction is needed between artifacts and natural entities. The problem [End Page 103] he sees is that such... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Ethics & the Environment 7.1 (2002) 102-108 [Access article in PDF] Symposium IntroductionEric Katz's Nature As Subject Andrew Light Can and should we distinguish between nature and culture? The question has become a perennial one in environmental ethics, as well as in allied fields in environmental history, sociology, and politics. And just when we think it is settled—as many did after William Cronon's famous deconstruction of wilderness in (...) 1995—and it feels safe to go back into the metaphysical waters of environmental philosophy, such issues pop up again to send us running.What follows extends this debate in the context of Eric Katz's well-known work in environmental ethics. Brought together here are Katz and two critics sympathetic to his positions, Wayne Ouderkirk and Ned Hettinger. While the occasion for the exchange was the publication of Katz's book, Nature as Subject: Human Obligation and Natural Community (1997), which collects his papers from 1979 to 1996, the focus quickly became somewhat narrower, centering on possible problems with Katz's ontological dualism between natural and artifactual entities.Katz has exerted a strong influence on the development of environmental ethics, particularly through his persistent arguments for a distinction between individualist and holist approaches to obligations to the nonhuman natural world and his metaphysical and moral critique of attempts [End Page 102] by humans to create, repair, or restore nature. While these positions continue to be on display here, there is also something more. In this exchange Katz throws down the gauntlet on his nature-culture dualism, admitting at the start that the accusation is true. Like the Protestants in Monty Python's The Meaning of Life, he is a dualist—and fiercely proud of it! Despite whatever misgivings I or others may have about this position, I believe that in making this claim, Katz, similar to David Chalmers's open embrace and resuscitation of dualism in philosophy of mind, has done us a great service. For it is arguably true that many environmental philosophers, along with other academics, have settled into a complacent "labeling as argument" pattern. If we can label a position as "dualist" or "essentialist," then our work is done. But surely not every form of dualism is necessarily wrong, even if, as Ouderkirk reminds us in his reading of Val Plumwood's work, the logic of many forms of dualism has tended toward a pernicious pattern. Arguments are needed in both directions. If nature-culture dualism is mistaken or wrongheaded, or leads to unfortunate conclusions, then we must know why; if dualism is the only way to make sense of the hurdles presented to us in coming to a better understanding of the value of nature and culture then we must know why as well. And further, because many in the field have assumed a nature-culture dualism without admitting to it, we can admire that Katz chooses to "fess up" and finally put the issue squarely on the table.If this is the road we are heading down with this particular exchange, then we are off to a good start. Both critics of Katz do a thorough job of pressing home their arguments, rather than only pointing accusatory fingers. Ned Hettinger, in "The Problem of Finding a Positive Role for Humans in the Natural World," avoids using the term "dualism," but nonetheless argues that Katz has a tendency to "rigidly dichotomize the natural/artifactual distinction." Additionally, Hettinger argues that Katz tends to overlook his own admission that the differences between nature and artifacts admit to degrees rather than a strict dualism. Hettinger focuses the bulk of his critique on the unfortunate upshot of such a position: given such a distinction, there is little if any place for a positive role for human intervention in nature, or for a philosophical contribution to the formation of better environmental policies.Wayne Ouderkirk, in "Katz's Problematic Dualism and its 'Seismic' Effects on His Theory," is sympathetic with Katz's intuitions that some distinction is needed between artifacts and natural entities. The problem [End Page 103] he sees is that such... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Ethics & the Environment 7.1 (2002) 102-108 [Access article in PDF] Symposium IntroductionEric Katz's Nature As Subject Andrew Light Can and should we distinguish between nature and culture? The question has become a perennial one in environmental ethics, as well as in allied fields in environmental history, sociology, and politics. And just when we think it is settled—as many did after William Cronon's famous deconstruction of wilderness in (...) 1995—and it feels safe to go back into the metaphysical waters of environmental philosophy, such issues pop up again to send us running.What follows extends this debate in the context of Eric Katz's well-known work in environmental ethics. Brought together here are Katz and two critics sympathetic to his positions, Wayne Ouderkirk and Ned Hettinger. While the occasion for the exchange was the publication of Katz's book, Nature as Subject: Human Obligation and Natural Community (1997), which collects his papers from 1979 to 1996, the focus quickly became somewhat narrower, centering on possible problems with Katz's ontological dualism between natural and artifactual entities.Katz has exerted a strong influence on the development of environmental ethics, particularly through his persistent arguments for a distinction between individualist and holist approaches to obligations to the nonhuman natural world and his metaphysical and moral critique of attempts [End Page 102] by humans to create, repair, or restore nature. While these positions continue to be on display here, there is also something more. In this exchange Katz throws down the gauntlet on his nature-culture dualism, admitting at the start that the accusation is true. Like the Protestants in Monty Python's The Meaning of Life, he is a dualist—and fiercely proud of it! Despite whatever misgivings I or others may have about this position, I believe that in making this claim, Katz, similar to David Chalmers's open embrace and resuscitation of dualism in philosophy of mind, has done us a great service. For it is arguably true that many environmental philosophers, along with other academics, have settled into a complacent "labeling as argument" pattern. If we can label a position as "dualist" or "essentialist," then our work is done. But surely not every form of dualism is necessarily wrong, even if, as Ouderkirk reminds us in his reading of Val Plumwood's work, the logic of many forms of dualism has tended toward a pernicious pattern. Arguments are needed in both directions. If nature-culture dualism is mistaken or wrongheaded, or leads to unfortunate conclusions, then we must know why; if dualism is the only way to make sense of the hurdles presented to us in coming to a better understanding of the value of nature and culture then we must know why as well. And further, because many in the field have assumed a nature-culture dualism without admitting to it, we can admire that Katz chooses to "fess up" and finally put the issue squarely on the table.If this is the road we are heading down with this particular exchange, then we are off to a good start. Both critics of Katz do a thorough job of pressing home their arguments, rather than only pointing accusatory fingers. Ned Hettinger, in "The Problem of Finding a Positive Role for Humans in the Natural World," avoids using the term "dualism," but nonetheless argues that Katz has a tendency to "rigidly dichotomize the natural/artifactual distinction." Additionally, Hettinger argues that Katz tends to overlook his own admission that the differences between nature and artifacts admit to degrees rather than a strict dualism. Hettinger focuses the bulk of his critique on the unfortunate upshot of such a position: given such a distinction, there is little if any place for a positive role for human intervention in nature, or for a philosophical contribution to the formation of better environmental policies.Wayne Ouderkirk, in "Katz's Problematic Dualism and its 'Seismic' Effects on His Theory," is sympathetic with Katz's intuitions that some distinction is needed between artifacts and natural entities. The problem [End Page 103] he sees is that such... (shrink)

Philosophy in the period immediately after Aristotle is sometimes thought to be marked by the decline of natural philosophy and philosophical disinterest in contemporary achievements in the sciences. But in one area at least, the early third century B.C.E. was a time of productive interaction between such disparate fields as epistemology, physics and geometry. Debates between the sceptics and the dogmatic philosophical schools focus on epistemological problems about the possibility of self-evident appearances, but there is evidence from Euclid's day of (...) a quite different response. The sceptical challenge provoked the development of theories explaining error formation, showing how illusions can be studied systematically and are subject to prediction. Such theories do not legitimate claims about the nature of the underlying entities perceived, but provide justification for forming expectations about future perceptions. While it overtly focuses on purely geometrical considerations, the Euclidean model of optics nonetheless provides support for certain views about the nature of vision and the physics of light. Moreover, by offering a model in which the image received is not thought to be a perspicuous mirroring of the object seen, Euclid may have helped promote a view of perception as something reconstructed from information received, not as a mere form transferred into the eye. The ancient sceptic may indeed have fulfilled his promise to promote inquiry by focusing attention on problems that escape the attention of a hasty theorist. (shrink)

Biobanks are increasingly being linked together into global networks in order to maximise their capacity to identify causes of and treatments for disease. While there is great optimism about the potential of these biobank networks to contribute to personalised and data-driven medicine, there are also ethical concerns about, among other things, risks to personal privacy and exploitation of vulnerable populations. Concepts drawn from theories of globalisation can assist with the characterisation of the ethical implications of biobank networking across borders, which (...) can, in turn, inform more ethically sophisticated responses. Using the China Kadoorie Biobank as a case study, we show how distinguishing between the subnational, transnational, supranational and extranational spheres of operation and influence can help researchers, institutions and regulators to understand and manage the ethical issues raised by the globalisation of biobanking. (shrink)

Light is a discursive tool that Sufis have drawn upon over the centuries in order to elucidate systems of thought and practice. In medieval Islamic thought, light was closely associated with the soul as well as conceptions of sight and the eye. It also occupied an important place in cosmology. By the twelfth- and thirteenth-centuries, Sufis began to consider notions of light more systematically, creating close correspondences between vision, cosmology, and anthropology within Sufi thought. This coincided (...) with the increased production of complex diagrams in Sufi texts. This article shows that these developments were interrelated. By analyzing Shams al-Dīn al-Daylamī’s diagrams alongside his theories of light with respect to the nature of the soul and body, it demonstrates that the theory of the soul as light played an important part in shaping Sufi thought, practice, and visual culture. (shrink)

Environmental pragmatism is a new strategy in environmental thought. It argues that theoretical debates are hindering the ability of the environmental movement to forge agreement on basic policy imperatives. This new direction in environmental thought moves beyond theory, advocating a serious inquiry into the merits of moral pluralism. Environmental pragmatism, as a coherent philosophical position, connects the methodology of classical American pragmatic thought to the explanation, solution and discussion of real issues. This concise, well-focused collection is the first comprehensive (...) presentation of environmental pragmatism as a new philosophical approach to environmental thought and policy. (shrink)

This article describes a challenge to the cultures and religions of the world that the author believes is the greatest challenge that has confronted the human race in its entire history. Modernity's search for unity and postmodernity's affirmation of pluralism reflect aspects of our current situation, but more needs to be recognized. We must acknowledge that East and West must face the current challenges together. Multiculturalism and unity encompass all world cultures, and we cannot be content to read our present (...) history only through the lens of western developments. Karl Jaspers's theory of the First Axial period of history, 800‐200 B.C.E., in which all the present world religions have their roots, is useful. It reveals that our present flowering of culture and spirit in the Western world, including our science, is not so much a product of the Western Renaissance and Enlightenment, as it is rooted in cultural events that belong to East and West equally. We are now in the Second Axial Period, which challenges the world religions to allow their energies to move toward convergence, just as in the previous millennia they moved toward differentiation. Teilhard de Chardin's thought is a guide for us, in his vision of a complex convergence of consciousness, in which differences will not be abolished but will be transformed in their coming together. This convergent perspective will also join with the perspective of rediscovering our roots in the earth, and it will repossess the spirituality of the primal peoples, in its understanding of the entire human race to be one tribe. The world religions are faced with the task, therefore, of encountering each other in “dialogic dialogue,” and channeling their spiritual resources toward the solution of real‐world global problems. (shrink)

Joan of Arc was as a mere 13-year-old girl when she first heard voices and saw visions of the Archangel Michael, Saint Catherine of Alexandria, and Saint Margaret of Antioch in her fathers garden. Both of her female saints were popular in the Middle Ages when these hallucinations began and she would have been familiar with their images as displayed in the local church in Domremy. But it is difficult to understand how a young and inexperienced girl could produce, accept, (...) and follow through on the daunting charge to save France from English incursion during the Hundred Years War, notably in the Battle of Orleans. Was she divinely inspired, mentally ill, or an intuitive genius with paranormal powers of perception? This paper will discuss previous theories by literary figures, as well as by scientists, both past and present, to shed modern neuroscientific insights onto her powers of perception. (shrink)

Seeing, Doing, and Knowing is an original and comprehensive philosophical treatment of sense perception as it is currently investigated by cognitive neuroscientists. Its central theme is the task-oriented specialization of sensory systems across the biological domain. Sensory systems are automatic sorting machines; they engage in a process of classification. Human vision sorts and orders external objects in terms of a specialized, proprietary scheme of categories - colours, shapes, speeds and directions of movement, etc. This 'Sensory Classification Thesis' implies that (...) sensation is not a naturally caused image from which an organism must infer the state of the world beyond; it is more like an internal communication, a signal concerning the state of the world issued by a sensory system, in accordance with internal conventions, for the use of an organism's other systems. This is why sensory states are both easily understood and persuasive.Sensory classification schemes are purpose-built to serve the knowledge-gathering and pragmatic needs of particular types of organisms. They are specialized: a bee or a bird does not see exactly what a human does. The Sensory Classification Thesis helps clarify this specialization in perceptual content and supports a new form of realism about the deliverances of sensation: 'Pluralistic Realism' is based on the idea that sensory systems coevolve with an organism's other systems; they are not simply moulded to the external world. The last part of the book deals with reference in vision. Cognitive scientists now believe that vision guides the limbs by means of a subsystem that links up with the objects of physical manipulation in ways that bypass sensory categories. In a novel extension of this theory, Matthen argues that 'motion-guiding vision' is integrated with sensory classification in conscious vision. This accounts for the quasi-demonstrative form of visual states: 'This particular object is red', and so on. He uses this idea to cast new light on the nature of perceptual objects, pictorial representation, and the visual representation of space. (shrink)

Berkeley holds that vision, in isolation, presents only color and light. He also claims that typical perceivers experience distance, figure, magnitude, and situation visually. The question posed in New Theory is how we perceive by sight spatial features that are not, strictly speaking, visible. Berkeley’s answer is “that the proper objects of vision constitute an universal language of the Author of nature.” For typical humans, this language of vision comes naturally. Berkeley identifies two sorts of (...) objects of vision: primary (light and colors) and secondary (distance, figure, magnitude, and situation). Berkeley also appeals to a third class of a different sort: visible figure, magnitude, and situation, constituting the vocabulary of the language of vision. By considering two perceivers who lack this vocabulary we may better understand this third category and the difference between those who must learn the language of vision and those for whom it is a natural endowment. (shrink)

The convergence of biomedical and information technology holds the potential to alter the discourses of identity, or as is argued here, to turn us inside out. The advent of digital networks makes it possible to ‘see inside’ people in ways not anticipated and thus create new performance arenas for the expression of identity. Drawing on the ideas of Butler and Foucault and theories of performativity, this paper examines a new context for human-computer interaction and articulates potentially disturbing issues with monitoring (...) health rather than wellbeing. It argues that by adopting explicitly social framings we can see beyond the idea of medical interventions for health to recognize the political implications of the new categorizations and their implementation in code. In the process, it critiques traditional ways of understanding machine-body relations within the field of technology design. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:144 JOURNAL OF THE HISTORY OF PHILOSOPHY 28" 1 JANUARY 199o name neo-Kantianism is generally used only for the time following 188o.s And is K6hnke really beingjust toward later neo-Kantianism in reckoning the 187os as a high point after which only a period of decline could follow? HELMU'r HOLZHEY Universityof Zurich Robert J. Richards. Darwin and the Emergenceof Evolutionary TheoriesofMind and Behav- /or. Science and Its Conceptual Foundations Series. (...) Chicago: The University of Chicago Press, 1987. Pp. xvii + 7oo. $34.95. This fascinating book operates at two levels, possibly three. At the most straightforward level, it is a history of science, telling the tale of the fate of evolutionary ideas as they have been applied to mind and behavior during the past two centuries, with special emphasis on the nineteenth century. At another level, Richards is acting qua philosopher, for he thinks the story he has to tell has important implications for philosophy. In particular, he thinks the people he discusses show the way to compelling theories of evolutionary epistemology and evolutionary ethics. To this end he attaches two philosophical appendices to his book, articulating and defending his philosophical claims. Then, at perhaps a third level, Richards uses his historical narrative as a case study (and possibly an exemplar) for his philosophy, especially his epistemology, trying to justify and illustrate his position. Let me take these levels in turn, briefly. First, we have the history. Anybody who knows anything at all about the history of science will know that the subject is clogged with overproduction and overinterpretation around a few key figures. Chief among these is Charles Darwin, and if ever anyone writes anything again on his discovery of natural selection, I for one will scream. What I have long suspected-- and what Richards shows in full detail--is that, because of their tunnel vision, the historians of science thereby ignore huge fertile areas, which go untouched. And the paradox is that the narrow perspective means that important aspects of those overdiscussed figures go unanalyzed! Certainly, Richards plows virgin territories, and thereby throws new light on many important figures in biology, psychology, and philosophy--not the least of which is Darwin himself. Richards starts in the eighteenth century with the first growths of evolutionary thought, showing that from the beginning thinkers recognized that humankind had to be part of the problem, and that this meant (in particular) human thought and behavior. I was glad to see a full discussion of Charles Darwin's grandfather, Erasmus Darwin. We are now starting to realize how he merits interest in his own right, not just as a curious anticipation of his more famous grandson. Moving forward, Richards shows how Erasmus Darwin struggled constantly with the problem of the human mind, as did Frenchmen like Lamarck. These and other thinkers were all known to s See H. Holzhey, "Neukandanismus," in HistorischesWOrterbuchderPhilosopfiie,vol.6 (1984), column 747ft. BOOK REVIEWS 145 Charles Darwin, and a significant part of Richards's discussion is devoted to showing just how much of Charles Darwin's thought on mind and behavior was built out of the work of others--with his own distinctive twists. Richards emphasizes, and I am sure he is right here, that natural theology was crucial to the development of Charles Darwin's thinking. It was not, as many critics have claimed, a case of Darwin throwing off religion and then taking up evolution. Rather, he has led to his evolution through his religion. Richards is almost unique among twentieth-century thinkers in finding virtue in the work of Herbert Spencer. I am still not convinced that Spencer was other than a tedious Victorian chauvinist. But no doubt I will not be the only scholar who is happy to have a Spencer apologist against whom one can test one's critical opinions. To be commended without reservation, however, is Richards's detailed analysis of the psychobiological thinking of William James. Richards delicately balances his knowledge of James's own psychological states (including facts still suppressed) with conceptual analysis of James's scientific claims. I do not know if this counts as "externalist" or "internalist " history of science, but it certainly shows that knowledge... (shrink)

This study analyses a Christic vision perceived by a woman during a radiotherapy session for her cervical cancer. A detailed description of the vision is presented based on a photographic documentation of the radiotherapy room, a painting of the vision made by the visionary herself and narratives retold two weeks after the vision, and again, one year later. Perceptual, social, and psychodynamic psychological theories are used to analyze the psychological prerequisites of the vision. It is (...) shown that the vision is, in psychological terms, an illusion rather than a hallucination. Different possible origin mechanisms to the vision are discussed as well as why the vision is attributed to Jesus. The psychological function of the vision is analyzed with regard to the visionary’s religious behaviour and the role of this experience in coping with the cancer disease. It is argued that the visionary’s religious commitment is being strengthened and that the vision functions as a catalyst for previously-formed religious coping mechanisms. It also initiates at least one new kind of religious coping mechanism in the visionary’s coping system. A critical discussion of research methods concerning narratives of religious experiences is presented in the light of the results of the analyses undertaken in this paper where some problems with in-depth interviews conducted at one point in time are is highlighted. This kind of data collection appears more fragile when attempting to explain a phenomenon in terms of cause and events than when trying to understand a phenomenon. (shrink)