Experts in Artificial Intelligence (AI) development predict that advances in the development of intelligent systems and agents will reshape vital areas in our society. Nevertheless, if such an advance is not made prudently and critically-reflexively, it can result in negative outcomes for humanity. For this reason, several researchers in the area have developed a robust, beneficial, and safe concept of AI for the preservation of humanity and the environment. Currently, several of the open problems in the field of AI research (...) arise from the difficulty of avoiding unwanted behaviors of intelligent agents and systems, and at the same time specifying what we really want such systems to do, especially when we look for the possibility of intelligent agents acting in several domains over the long term. It is of utmost importance that artificial intelligent agents have their values aligned with human values, given the fact that we cannot expect an AI to develop human moral values simply because of its intelligence, as discussed in the Orthogonality Thesis. Perhaps this difficulty comes from the way we are addressing the problem of expressing objectives, values, and ends, using representational cognitive methods. A solution to this problem would be the dynamic approach proposed by Dreyfus, whose phenomenological philosophy shows that the human experience of being-in-the-world in several aspects is not well represented by the symbolic or connectionist cognitive method, especially in regards to the question of learning values. A possible approach to this problem would be to use theoretical models such as SED (situated embodied dynamics) to address the values learning problem in AI. (shrink)

Experts in Artificial Intelligence (AI) development predict that advances in the development of intelligent systems and agents will reshape vital areas in our society. Nevertheless, if such an advance is not made prudently and critically-reflexively, it can result in negative outcomes for humanity. For this reason, several researchers in the area are trying to develop a robust, beneficial, and safe concept of AI for the preservation of humanity and the environment. Currently, several of the open problems in the field of (...) AI research arise from the difficulty of avoiding unwanted behaviors of intelligent agents and systems, and at the same time specifying what we want such systems to do, especially when we look for the possibility of intelligent agents acting in several domains over the long term. It is of utmost importance that artificial intelligent agents have their values aligned with human values, given the fact that we cannot expect an AI to develop human moral values simply because of its intelligence, as discussed in the Orthogonality Thesis. Perhaps this difficulty comes from the way we are addressing the problem of expressing objectives, values, and ends, using representational cognitive methods. A solution to this problem would be the dynamic approach proposed by Dreyfus, whose phenomenological philosophy shows that the human experience of being-in-the-world in several aspects is not well represented by the symbolic or connectionist cognitive method, especially in regards to the question of learning values. A possible approach to this problem would be to use theoretical models such as SED (situated embodied dynamics) to address the values learning problem in AI. (shrink)

Especialistas em desenvolvimento de Inteligência Artificial prevêem que o avanço no desenvolvimento de sistemas e agentes inteligentes irá remodelar áreas vitais em nossa sociedade. Contudo, se tal avanço não for realizado de maneira prudente e crítico-reflexiva, pode resultar em desfechos negativos para a humanidade. Por este motivo, diversos pesquisadores na área têm desenvolvido uma concepção de IA robusta, benéfica e segura para a preservação da humanidade e do meio-ambiente. Atualmente, diversos dos problemas em aberto no campo de pesquisa em IA (...) advêm da dificuldade de evitar comportamentos indesejados de agentes e sistemas inteligentes, e ao mesmo tempo especificar o que realmente queremos que tais sistemas façam, especialmente quando prospectamos a possibilidade de agentes inteligentes atuarem em vários domínios ao longo prazo. É de suma importância que agentes inteligentes artificiais tenham seus valores alinhados com os valores humanos, dado ao fato de que não podemos esperar que uma IA desenvolva valores morais humanos por conta de sua inteligência, conforme é discutido na Tese da Ortogonalidade. Talvez tal dificuldade venha da maneira que estamos abordando o problema de expressar objetivos, valores e metas, utilizando de métodos cognitivos representacionais. Uma solução para este problema seria a abordagem dinâmica proposta por Dreyfus, que com base na filosofia fenomenológica mostra que a experiência humana do ser-no-mundo em diversos aspectos não é bem representada pelo método cognitivo simbólico ou conexionista, especialmente na questão de aprendizagem de valores. Uma possível abordagem para esse problema seria a utilização de modelos téoricos como SED para abordar o porblema de aprendizagem de valores em IA. (shrink)

A 4ª Revolução Industrial é o culminar da era digital. Atualmente, tecnologias como robótica, nanotecnologia, genética e inteligência artificial prometem transformar nosso mundo e a maneira como vivemos. O campo da Segurança e da Ética da Inteligência Artificial são áreas de pesquisa emergentes que vêm ganhando popularidade nos últimos anos. Diversas organizações de cunho privado, público e não governamentais têm publicado diretrizes propondo princípios éticos para a regulamentação do uso e desenvolvimento de sistemas inteligentes autônomos. Meta-análises do campo de pesquisa (...) em Ética da IA apontam uma convergência sobre certos princípios éticos que, supostamente, governam a indústria da IA. Entretanto, pouco se sabe sobre a eficiência desta forma de “Ética”. Neste estudo, gostaríamos de realizar uma análise crítica do atual estado da Ética da IA, e sugerir que essa forma de governança baseada em diretrizes éticas principialista não é suficiente para normatizar a indústria da IA e seus desenvolvedores. Acreditamos que drásticas mudanças sejam necessárias, tanto nos processos de formação de profissionais das áreas ligadas ao desenvolvimento de software e sistemas inteligentes quanto no aumento da regulamentação desses profissionais e sua indústria. Para tanto, sugerimos que o Direito se beneficie das contribuições recentes da Bioética, de forma a explicitar em termos legais as contribuições da Ética da IA para a governança. (shrink)

Nicholas Wolterstorff discusses the ethics of belief which Locke developed in Book IV of his Essay Concerning Human Understanding, where Locke finally argued his overarching aim: how we ought to govern our belief, especially on matters of religion and morality. Wolterstorff shows that this concern was instigated by the collapse, in Locke's day, of a once-unified moral and religious tradition in Europe into warring factions. His was thus a culturally and socially engaged epistemology. This view of Locke invites a (...) new interpretation of the origins of modern philosophy. He maintained that instead of following tradition we ought to let 'reason be our guide.' Accordingly, after discussing Hume's powerful attack on Locke's recommended practice, Wolterstorff argues for Locke's originality and emphasizes his contribution to the 'modernity' of post-sixteenth-century philosophy. (shrink)

The two great philosophical figures at the culminating point of the Enlightenment are Thomas Reid in Scotland and Immanuel Kant in Germany. Reid was by far the most influential across Europe and the United States well into the nineteenth century. Since that time his fame and influence have been eclipsed by his German contemporary. This important book by one of today's leading philosophers of knowledge and religion will do much to reestablish the significance of Reid for philosophy today. Nicholas (...) Wolterstorff has produced the first systematic account of Reid's epistemology. Relating Reid's philosophy to present-day epistemological discussions the author demonstrates how they are at once remarkably timely, relevant, and provocative. No other book both uncovers the deep pattern of Reid's thought and relates it to contemporary philosophical debate. This book should be read by historians of philosophy as well as all philosophers concerned with epistemology and the philosophy of mind. (shrink)

Human beings engage works of the arts in many different ways: they sing songs while working, they kiss icons, they create and dedicate memorials. Yet almost all philosophers of art of the modern period have ignored this variety and focused entirely on just one mode of engagement, namely, disinterested attention. Nicholas Wolterstorff asks why this might be, and proposes that almost all philosophers have accepted the grand narrative concerning art in the modern world. It is generally agreed that in (...) the early modern period, members of the middle class in Western Europe increasingly engaged works of the arts as objects of disinterested attention. The grand narrative claims that this change represented the arts coming into their own, and that works of art, so engaged, are socially other and transcendent. Wolterstorff rejects this claim, and offers an alternative framework for thinking about the arts. Central to his alternative framework are the idea of the arts as social practices and the idea of works of the arts as having different meaning in different practices. (shrink)

Prominent in the canonical texts and traditions of Judaism, Christianity, and Islam is the claim that God speaks. Nicholas Wolterstorff argues that contemporary speech-action theory, when appropriately expanded, offers us a fascinating way of interpreting this claim and showing its intelligibility. He develops an innovative theory of double-hermeneutics - along the way opposing the current near-consensus led by Ricoeur and Derrida that there is something wrong-headed about interpreting a text to find out what its author said. Wolterstorff argues that (...) at least some of us are entitled to believe that God has spoken. Philosophers have never before, in any sustained fashion, reflected on these matters, mainly because they have mistakenly treated speech as revelation. (shrink)

In this brief history, philosopher Nicholas White reviews 2,500 years of philosophical thought about happiness. Addresses key questions such as: What is happiness? Should happiness play such a dominant role in our lives? How can we deal with conflicts between the various things that make us happy? Considers the ways in which major thinkers from antiquity to the modern day have treated happiness: from Plato’s notion of the harmony of the soul, through to Nietzsche’s championing of conflict over harmony. (...) Relates questions about happiness to ethics and to practical philosophy. (shrink)

Are special relativity and probabilism compatible? Dieks argues that they are. But the possible universe he specifies, designed to exemplify both probabilism and special relativity, either incorporates a universal "now" (and is thus incompatible with special relativity), or amounts to a many world universe (which I have discussed, and rejected as too ad hoc to be taken seriously), or fails to have any one definite overall Minkowskian-type space-time structure (and thus differs drastically from special relativity as ordinarily understood). Probabilism and (...) special relativity appear to be incompatible after all. What is at issue is not whether "the flow of time" can be reconciled with special relativity, but rather whether explicitly probabilistic versions of quantum theory should be rejected because of incompatibility with special relativity. (shrink)

"A complete and unified account of Plato's epistemology... scholarly, historically sensitive, and philosophically sophisticated. Above all it is sensible.... White's strength is that he places Plato's preoccupation in careful historical perspective, without belittling the intrinsic difficulties of the problems he tackled.... White's project is to find a continuous argument running through Plato's various attacks on epistemological problems. No summary can do justice to his remarkable success." --Ronald B. De Sousa, University of Toronto, in Phoenix.

This volume brings together Nicholas Wolterstorff's essays on epistemology written between 1983 and 2008.

The basic task of the essay is to exhibit science as a rational enterprise. I argue that in order to do this we need to change quite fundamentally our whole conception of science. Today it is rather generally taken for granted that a precondition for science to be rational is that in science we do not make substantial assumptions about the world, or about the phenomena we are investigating, which are held permanently immune from empirical appraisal. According to this standard (...) view, science is rational precisely because science does not make a priori metaphysical presuppositions about the world forever preserved from possible empirical refutation. It is of course accepted that an individual scientist, developing a new theory, may well be influenced by his own metaphysical presuppositions. In addition, it is acknowledged that a successful scientific theory, within the context of a particular research program, may be protected for a while from refutation, thus acquiring a kind of temporary metaphysical status, as long as the program continues to be empirically progressive. All such views unite, however, in maintaining that science cannot make permanent metaphysical presuppositions, held permanently immune from objective empirical evaluation. According to this standard view, the rationality of science arises, not from the way in which new theories are discovered, but rather from the way in which already formulated theories are appraised in the light of empirical considerations. And the fundamental problem of the rationality of science—the Humean problem of induction— concerns precisely the crucial issue of the rationality of accepting theories in the light of evidence. In this essay I argue that this widely accepted standard conception of science must be completely rejected if we are to see science as a rational enterprise. In order to assess the rationality of accepting a theory in the light of evidence it is essential to consider the ultimate aims of science. This is because adopting different aims for science will lead us, quite rationally, to accept different theories in the light of evidence. I argue that a basic aim of science is to explain. At the outset science simply presupposes, in a completely a priori fashion, that explanations can be found, that the world is ultimately intelligible or simple. In other words, science simply presupposes in an a priori way the metaphysical thesis that the world is intelligible, and then seeks to convert this presupposed metaphysical theory into a testable scientific theory. Scientific theories are only accepted insofar as they promise to help us realize this fundamental aim. At once a crucial problem arises. If scientific theories are only accepted insofar as they promise to lead us towards articulating a presupposed metaphysical theory, it is clearly essential that we can choose rationally, in an a priori way, between all the very different possible metaphysical theories that can be thought up, all the very different ways in which the universe might ultimately be intelligible. For holding different aims, accepting different metaphysical theories conceived of as blueprints for future scientific theories will, quite rationally, lead us to accept different scientific theories. Thus it is only if we can choose rationally between conflicting metaphysical blueprints for future scientific theories that we will be in a position to appraise rationally the acceptability of our present day scientific theories. We thus face the crucial problem: How can we choose rationally between conflicting possible aims for science, conflicting metaphysical blueprints for future scientific theories ? It is only if we can solve this fundamental problem concerning the aims of science that we can be in a position to appraise rationally the acceptability of existing scientific theories. There is a further point here. If we could choose rationally between rival aims, rival metaphysical blueprints for future scientific theories, then we would in effect have a rational method for the discovery of new scientific theories! Thus we reach the result: there is only a rational method for the appraisal of existing scientific theories if there is a rational method of discovery. I shall argue that the aim-oriented theory of scientific inquiry to be advocated here succeeds in exhibiting science as a rational enterprise in that it succeeds in providing a rational procedure for choosing between rival metaphysical blueprints: it thus provides a rational, if fallible, method of discovery, and a rational method for the appraisal of existing scientific theories—thus resolving the Humean problem. In Part I of the essay I argue that the orthodox conception of science fails to exhibit science as a rational enterprise because it fails to solve the Humean problem of induction. The presuppositional view advocated here does however succeed in resolving the Humean problem. In Part II of the essay I spell out the new aim-oriented theory of scientific method that becomes inevitable once we accept the basic presuppositional viewpoint. I argue that this new aim oriented conception of scientific method is essentially a rational method of scientific discovery, and that the theory has important implications for scientific practice. (shrink)

A step by step, passage by passage analysis of the complete Republic. White shows how the argument of the book is articulated, the important interconnections among its elements, and the coherent and carefully developed train of though which motivates its complex philosophical reasoning. In his extensive introduction, White describes Plato's aims, introduces the argument, and discusses the major philosophical and ethical theories embodied in the Republic. He then summarizes each of its ten books and provides substantial explanatory and interpretive notes.

Participation in religious liturgies and rituals is a pervasive and complex human activity. This book discusses the nature of liturgical activity and the various dimensions of such activity. Nicholas Wolterstorff focuses on understanding what liturgical agents actually do and shows religious practice as a rich area for philosophical reflection.

This volume presents influential work by Nicholas Wolterstorff at the intersection between political philosophy and religion, alongside nine new essays on the nature of liberal democracy, human rights, and political authority. These novel essays offer an attractive alternative to the public reason liberalism defended by thinkers such as John Rawls.

The basic task of the essay is to exhibit science as a rational enterprise. I argue that in order to do this we need to change quite fundamentally our whole conception of science. Today it is rather generally taken for granted that a precondition for science to be rational is that in science we do not make substantial assumptions about the world, or about the phenomena we are investigating, which are held permanently immune from empirical appraisal. According to this standard (...) view, science is rational precisely because science does not make a priori metaphysical presuppositions about the world forever preserved from possible empirical refutation. It is of course accepted that an individual scientist, developing a new theory, may well be influenced by his own metaphysical presuppositions. In addition, it is acknowledged that a successful scientific theory, within the context of a particular research program, may be protected for a while from refutation, thus acquiring a kind of temporary metaphysical status, as long as the program continues to be empirically progressive. All such views unite, however, in maintaining that science cannot make permanent metaphysical presuppositions, held permanently immune from objective empirical evaluation. According to this standard view, the rationality of science arises, not from the way in which new theories are discovered, but rather from the way in which already formulated theories are appraised in the light of empirical considerations. And the fundamental problem of the rationality of science--the Humean problem of induction--concerns precisely the crucial issue of the rationality of accepting theories in the light of evidence. In this essay I argue that this widely accepted standard conception of science must be completely rejected if we are to see science as a rational enterprise. In order to assess the rationality of accepting a theory in the light of evidence it is essential to consider the ultimate aims of science. This is because adopting different aims for science will lead us, quite rationally, to accept different theories in the light of evidence. I argue that a basic aim of science is to explain. At the outset science simply presupposes, in a completely a priori fashion, that explanations can be found, that the world is ultimately intelligible or simple. In other words, science simply presupposes in an a priori way the metaphysical thesis that the world is intelligible, and then seeks to convert this presupposed metaphysical theory into a testable scientific theory. Scientific theories are only accepted insofar as they promise to help us realize this fundamental aim. At once a crucial problem arises. If scientific theories are only accepted insofar as they promise to lead us towards articulating a presupposed metaphysical theory, it is clearly essential that we can choose rationally, in an a priori way, between all the very different possible metaphysical theories that can be thought up, all the very different ways in which the universe might ultimately be intelligible. For holding different aims, accepting different metaphysical theories conceived of as blueprints for future scientific theories will, quite rationally, lead us to accept different scientific theories. Thus it is only if we can choose rationally between conflicting metaphysical blueprints for future scientific theories that we will be in a position to appraise rationally the acceptability of our present day scientific theories. We thus face the crucial problem: How can we choose rationally between conflicting possible aims for science, conflicting metaphysical blueprints for future scientific theories? It is only if we can solve this fundamental problem concerning the aims of science that we can be in a position to appraise rationally the acceptability of existing scientific theories. There is a further point here. If we could choose rationally between rival aims, rival metaphysical blueprints for future scientific theories, then we would in effect have a rational method for the discovery of new scientific theories! Thus we reach the result: there is only a rational method for the appraisal of existing scientific theories if there is a rational method of discovery. I shall argue that the aim-oriented theory of scientific inquiry to be advocated here succeeds in exhibiting science as a rational enterprise in that it succeeds in providing a rational procedure for choosing between rival metaphysical blueprints: it thus provides a rational, if fallible, method of discovery, and a rational method for the appraisal of existing scientific theories--thus resolving the Humean problem. In Part I of the essay I argue that the orthodox conception of science fails to exhibit science as a rational enterprise because it fails to solve the Humean problem of induction. The presuppositional view advocated here does however succeed in resolving the Humean problem. In Part II of the essay I spell out the new aim-oriented theory of scientific method that becomes inevitable once we accept the basic presuppositional viewpoint. I argue that this new aim oriented conception of scientific method is essentially a rational method of scientific discovery, and that the theory has important implications for scientific practice. (shrink)

For a century or more political theology has been in decline. Recent years, however, have seen increasing interest not only in how church and state should be related, but in the relation between divine authority and political authority, and in what religion has to say about the limits of state authority and the grounds of political obedience. In this book, Nicholas Wolterstorff addresses this whole complex of issues. He takes account of traditional answers to these questions, but on every (...) point stakes out new positions. Wolterstorff offers a fresh theological defense of liberal democracy, argues that the traditional doctrine of 'two rules' should be rejected and offers a fresh exegesis of Romans 13, the canonical biblical passage for the tradition of Christian political theology. This book provides useful discussion for scholars and students of political theology, law and religion, philosophy of religion and social ethics. (shrink)

The most constructive response to the crisis in moral theory has been the revival of virtue ethics, which has the advantages of being personal, contextual, and, as will be argued, normative as well. It is also proposed that the best way to refound virtue ethics is to return to the Greek concept of technē tou biou, literally "craft of life." The ancients did not distinguish between craft and fine art, and the meaning of technē, even in its Latin form, ars, (...) still retains the meaning of skillful crafting and discipline. In Greco-Roman culture, techniques were very specific, covering dietetics, economics, and erotics. In ancient China, moral cultivation was intimately connected to the arts, from archery to poetry, music, and dance, such that virtually every activity would have both moral and aesthetic meaning. Using R. D. Collingwood's distinction between craft and fine art, it is proposed that the latter, particularly the performing arts of music and dance, can serve as a model for virtue ethics in our times. (shrink)

This thesis describes two classes of Dialectica categories. Chapter one introduces dialectica categories based on Goedel's Dialectica interpretation and shows that they constitute a model of Girard's Intuitionistic Linear Logic. Chapter two shows that, with extra assumptions, we can provide a comonad that interprets Girard's !-course modality. Chapter three presents the second class of Dialectica categories, a simplification suggested by Girard, that models (classical) Linear Logic and chapter four shows how to provide modalities ! and ? for this second class (...) of construction. (shrink)

The most constructive response to the crisis in moral theory has been the revival of virtue ethics, which has the advantages of being personal, contextual, and, as will be argued, normative as well. It is also proposed that the best way to refound virtue ethics is to return to the Greek concept of technē tou biou, literally "craft of life." The ancients did not distinguish between craft and fine art, and the meaning of technē, even in its Latin form, ars, (...) still retains the meaning of skillful crafting and discipline. In Greco-Roman culture, techniques were very specific, covering dietetics, economics, and erotics. In ancient China, moral cultivation was intimately connected to the arts, from archery to poetry, music, and dance, such that virtually every activity would have both moral and aesthetic meaning. Using R. D. Collingwood's distinction between craft and fine art, it is proposed that the latter, particularly the performing arts of music and dance, can serve as a model for virtue ethics in our times. (shrink)

Three thoughts strongly influence recent work on sensory imagination, often without explicit articulation. The image thought says that all mental states involving a mental image are imaginative. The attitude thought says that, if there is a distinctive imaginative attitude, it is a single, monolithic attitude. The function thought says that the functions of sensory imagination are identical or akin to functions of other mental states such as judgment or belief. Taken together, these thoughts create a theoretical context within which eliminativism (...) appears attractive. Eliminativism is the idea that we needn’t refer to a distinctive attitude in order to characterize sensory imagination: the attitudes involved in other states provide all the resources we need. Peter Langland-Hassan’s account of sensory imagination provides an example of such eliminativism. Via close examination of this account, I make manifest the three thoughts and their collective tendency to support eliminativism. I argue that all three are dubious, and that we should reject eliminativism; we need a distinctive imaginative attitude if we are to adequately explicate sensory imagination. (shrink)

In “Artistic Worth and Personal Taste,” Jerrold Levinson develops a problem for those who think we should strive to be “ideal critics” in our aesthetic lives. He then offers several solutions to this problem. I argue that his solutions miss the mark and that the problem he characterizes may not be genuine after all.

In this entertaining and provocative introduction, Royle offers lucid explanations of various key ideas, including deconstruction, undecidability, iterability, differance, aporia, the pharmakon, the supplement, a new enlightenment, and the democracy to come. He also gives attention, however, to a range of less obvious key ideas of Derrida, such as earthquakes, animals and animality, ghosts, monstrosity, the poematic, drugs, gifts, secrets, war, and mourning. Derrida is seen as an extraordinarily inventive thinker, as well as a brilliantly imaginative and often very funny (...) writer. Other critical introductions tend to highlight the specifically philosophical nature and genealogy of his work. Royle's book proceeds in a new and different way, in particular by focusing on the crucial but strange place of literature in Derrida's writings. He thus provides an appreciation and understanding based on detailed reference to Derrida's texts, interwoven with close readings of such writers as Shakespeare, Coleridge, P.B. Shelley, Poe, Emily Brontë, Franz Kafka and Elizabeth Bowen. In doing so, he explores Derrida's consistent view that deconstruction is "a coming-to-terms with literature". He emphasizes the ways in which "literature", for Derrida, is indissociably bound up with other concerns, such as philosophy and psychoanalysis, politics and ethics, responsibility and justice, law and democracy. (shrink)

White opposes the long-standing view that ancient Greek ethics is fundamentally different from modern ethical views. He examines the ways in which Greek ethics has been interpreted since the 18th century, and traces the history in Greek ethical thought of the idea of conflict among human aims, in particular the conflict between conformity to ethical standards and one's own happiness.

Are probabilism and special relativity compatible? Dieks argues that they are. But the possible universe he specifies, designed to exemplify both probabilism and special relativity, either incorporates a universal “now”, or amounts to a many world universe, or fails to have any one definite overall Minkowskian-type space-time structure. Probabilism and special relativity appear to be incompatible after all. What is at issue is not whether “the flow of time” can be reconciled with special relativity, but rather whether explicitly probabilistic versions (...) of quantum theory should be rejected because of incompatibility with special relativity. (shrink)

Reflectance physicalists define reflectance as the intrinsic disposition of a surface to reflect finite-duration light pulses at a given efficiency per wavelength. I criticize the received view of dispositional reflectance (David R. Hilbert’s) for failing to account for what I call “harmonic dispersion,” the inverse relationship of a light pulse's duration to its bandwidth. I argue that harmonic dispersion renders reflectance defined in terms of light pulses an extrinsic disposition. Reflectance defined as the per-wavelength efficiency to reflect the superimposed, infinite-duration, (...) Fourier harmonics of pulses can be an intrinsic disposition of surfaces. This conclusion raises questions about mathematical realism, about which I nevertheless remain neutral. (shrink)

AS SOME PHILOSOPHERS KNOW, the paradox about inquiry at 80d-e of Plato’s Meno is more than a tedious sophism. Plato is one such philosopher. The puzzle is an obstacle to his project of discovering definitions, and is introduced as such. And it is met with an elaborate response: the theory of recollection, explicitly presented as an answer to the obstacle. But then what of the famous conversation in which Socrates coaxes a geometrical theorem from a slave boy Is the theory (...) not designed to explain the boy’s ability to respond to the coaxing? It is, certainly, but that is not its only purpose. The structure of the passage is this: the theory is there to disarm the paradox, and the conversation is there to support the theory. To see this structure is to understand a notorious and otherwise troubling fact, that Plato is so very quick to take the slave’s behavior—which he might have tried to explain in some other way-to be clear evidence for recollection. The reason why he so takes it is that the paradox has led him to think that only if recollection occurs is fruitful inquiry possible—and he is very anxious indeed to be assured that it is possible. He would not have been so enticed by explanations of the boy’s behavior which did not also seem to him to dispose of the puzzle. Here now is Plato’s setting of the paradox. (shrink)

My account is subject to two important limitations. First, I shall be discussing whether or not Aristotle holds to an essentialistic doctrine with regard to sensible particulars, and shall neglect entirely his views about such things as species, genera, universals, and the like. Secondly, I shall be leaving out of account such chronologically late productions as Metaphysics VI-X and IV. Thus I shall be concentrating on the Categories, the Topics, the Physics, and the De Generatione et Corruptione. I am not (...) convinced that later works show substantial change over the works which I shall be discussing, but the later works do present severe exegetical difficulties which could not be adequately met within the scope of this essay. (shrink)

Are probabilism and special relativity compatible? Dieks argues that they are. But the possible universe he specifies, designed to exemplify both probabilism and special relativity, either incorporates a universal “now”, or amounts to a many world universe, or fails to have any one definite overall Minkowskian-type space-time structure. Probabilism and special relativity appear to be incompatible after all. What is at issue is not whether “the flow of time” can be reconciled with special relativity, but rather whether explicitly probabilistic versions (...) of quantum theory should be rejected because of incompatibility with special relativity. (shrink)

As possibilidades de diálogo pedagógico entre os campos da Educação Ambiental e Formação Humana nos cursos de Educação Física é objeto deste estudo. Buscando revisar e evidenciar os princípios e objetivos construídos historicamente da Educação Ambiental e a atual realidade da formação de professores, identificando os limites e possibilidades para a construção de uma proposta crítica pedagógica que altera a lógica na Formação de Professores em Educação Física a partir do tripé ensino, pesquisa e extensão e a Educação Ambiental.The possibilities (...) pedagogical of the dialogue between the fields of Human Environmental Education and Training courses in Physical Education is an object of this study. The objective is review and clear the principles and objectives of environmental education, identifying the limits and possibilities for building critical pedagogical proposal amending the logic in the courses of the physical education from the triad education, research and outreach and environmental education. (shrink)