It is usually supposed that the Dirac and radiation equations predict that the phase of a fermion will rotate through half the angle through which the fermion is rotated, which means, via the measured dynamical and geometrical phase factors, that the fermion must have a half-integral spin. We demonstrate that this is not the case and that the identical relativistic quantum mechanics can also be derived with the phase of the fermion rotating through the same angle as does the fermion (...) itself. Under spatial rotation and Lorentz transformation the bispinor transforms as a four-vector like the potential and Dirac current. Previous attempts to provide this form of transformational behavior have foundered because a satisfactory current could not be derived.(14). (shrink)

We have shown in a previous paper that the Dirac bispinor can vary like a four-vector and that Quantum Electrodynamics can be reproduced with this form of behaviour. In Part I of this paper, we show that QED with the same transformational behaviour also holds in an alternative space we call M-space. We use the four-vector behaviour to model the two-body interaction in M and show that this has similar physical properties to the usual model in L which it predicts. (...) In Part II of this paper we use M-space to show that QED can be reduced to two simple rules for a two-body interaction. (shrink)

We complete our previous(1, 2) demonstration that there is a family of new solutions to the photon and Dirac equations using spatial and temporal circles and four-vector behaviour of the Dirac bispinor. We analyse one solution for a bound state, which is equivalent to the attractive two-body interaction between a charged point particle and a second, which remains at rest. We show this yields energy and angular momentum eigenvalues that are identical to those found by the usual method of solving (...) of the Dirac equation,(4) including fine structure. We complete our previous derivation(2) of QED from a set of rules for the two-body interaction and generalise these. We show that QED may be decomposed into a two-body interaction at every point in spacetime. (shrink)

W. E. B. Du Bois was one of the most profound and influential African-American intellectuals of the twentieth century. This volume addresses the complexities of Du Bois' legacy, showing how his work gets to the heart of today's theorizing about the color line.

Historians of technology have provided important accounts of technological innovation, but they rarely employ concepts which permit a rigorous analysis ofinvention as a mental or cognitive process. This article seeks to address this theoretical lacuna by using concepts adapted from cognitive psychology to compare the mental processes of two telephone inventors, Alexander Graham Bell and Thomas Edison. Specifically, we suggest that invention may be seen as a process in which inventors combine ideas with objects, or what we call mental (...) models and mechanical representations. The strategies by which inventors generate and manipulate these mental models and mechanical representations are what we refer to as heuristics. Using these concepts to narrate the development of the telephone, this article shows how invention can be interpreted as being much more than simply a mysterious act of individual genius. (shrink)

Un raccord réalisé dernièrement entre un poitrail d'animal ailé découvert à Thasos en 1987 et une tête archaïque de la Glyptothèque Ny Carlsberg de Copenhague, connue sous le nom de «tête Wix», généralement considérée comme appartenant à un couros créé au milieu du vr siècle, permet de reconstituer une sphinge dont la tête est très légèrement tournée vers sa gauche. Cette belle sculpture thasienne, qu'on peut maintenant dater plus précisément de 570-560 av. J.-C, confirme l'influence du style paro-chiote sur Thasos, (...) colonie de Paros. De plus, le type même du monument auquel elle appartenait semble avoir son origine dans les Cyclades : à Naxos et à Paros. Conformément à leur nature de démon chthonien les sphinges dressées dans les sanctuaires au sommet d'une colonne ionique gardaient la tombe d'un héros. C'est du moins ce qui semble avoir été le cas dans les sanctuaires d'Apollon de Délos et de Delphes, à l'Acropole d'Athènes, au sanctuaire d'Archiloque à Paros. (shrink)

L'homme des droits de l'homme eut une belle vie, pleine de bruit et de fureur, mais aujourd'hui, il n'est plus. En lieu et place a surgi un nouvel homme, égoïste, hédoniste, à la recherche de son seul plaisir ; sa préoccupation première, essentielle, c'est l'amour de soi, l'émerveillement de soi, la satisfaction de soi, et l'Etat est sommé d'y satisfaire. Car l'Etat n'est plus ce tyran féroce, avide de pouvoir, ce despote aux aguets qui attend l'occasion pour soumettre ces sujets (...) ; il ne fait plus vraiment peur ; il a été assagi, apprivoisé et sa fonction est de gérer un nouveau pacte social : non plus de faire respecter la liberté de tous mais celle de chacun ; non plus d'établir l'égalité pour tous mais pour chacun ; non plus de protéger un «moi commun», une nation, une collectivité, mais un moi individuel ; les hommes ne se sont pas réunis pour leur sécurité et leur conservation, mais pour mieux jouir les uns des autres. (shrink)

La musique a exercé depuis les temps les plus reculés une telle fascination sur l’esprit humain que l’homme n’a eu de cesse de créer des instruments nouveaux, de les perfectionner, de travailler sa voix pour lui donner la plus parfaite expression, de rechercher de nouvelles harmonies, de se laisser guider par son inspiration afin de concevoir les plus belles oeuvres. Mais d’où vient cette inspiration qui permit à certains êtres de léguer à l’humanité des chefs-d'oeuvre qui, plusieurs siècles après leur (...) naissance, continuent à élever notre âme? Et quel est, ou quel devrait être, le rôle véritable de la musique? C’est ce que nous découvrirons en lisant ces lignes. Les articles de cette oeuvre collégiale, conçue dans le cadre de l’Université Rose-Croix Internationale, apportent un éclairage original et vécu sur le rôle de la musique dans le domaine spécifique de la spiritualité. Ils explorent l’apport de musiciens de génie et se penchent également sur le comportement de l’auditeur, qui ne peut être purement passif s’il veut bénéficier pleinement des influences les plus subtiles de la musique. Par ailleurs, ces articles analysent l’importance de l’interprétation, qui est essentielle, tant pour la transmission que pour la réception de l’oeuvre musicale. (shrink)

Metaphysics as a human enterprise is for ever called upon to vindicate its claim to be entitled “knowledge.” Sometimes the challenge is issued in the name of irritated common sense. Sometimes metaphysics is relegated into insignificance by a supercilious estheticism. Sometimes metaphysics is excommunicated for daring to trespass on the holy domain of religion. Here its death sentence is pronounced by an all-embracing scepticism, and there by the confident faith in the universal adequacy and exclusive validity of the methods of (...) science. The attacks on metaphysics throughout the ages have been so numerous and so severe that one would expect the victim to have expired long ago. Yet the inextinguishable will-to-live exhibited by metaphysics has been as remarkable a phenomenon as the perennial tenacity of her would-be executioners. And although the bells have been tolled many times for metaphysics, she is still able to announce with Mark Twain that the rumours of her demise have been slightly exaggerated. In the long run, history seems to reveal a singular indocility with respect to the arguments of the enemies of metaphysics, and as Gilson has pointed out, one of the lessons to be derived from the study of the history of philosophy is that metaphysics always buries its undertakers. (shrink)

In this article the Reformer Martin Luther is to be situated against the backdrop of his medieval theological context – considering especially Bernard of Clairvaux. It is well-known that he held in great esteem Bernard and the theology he represented. First of all, Luther's relationship to Bernard is to be investigated by way of a historiographic review of the research that was done in the past 150 years. How did one consider Luther’s attitude toward Bernard, and (...) how did Luther research specifically value this attitude? In this research, denominational positions appear to have played a important role. Secondly, the attempt is made here to sketch Bernard’s place in Luther’s own tradition. Next to the medieval scholastic theology, there were diverse other influences that became important for the young Luther. Bernard’s specific place within the complexity of medieval traditions is to be determined. This is being explained by presenting seven significant texts mainly from Luther’s works, which are added to this article. Finally, the attempt is made to determine more closely Bernard’s place in Luther’s theology between Scholasticism and Mysticism. If one wants to do justice to Bernard in Luther's works, one must take into consideration the way in which Luther has perceived him, namely as a theologian of the Scriptures, a theologian of experience and a preacher of Christ par excellence along the lines of monastic theology. (shrink)

Bernard Bolzano , one of the leading figures of the Bohemian Enlightenment, made important contributions both to mathematics and philosophy which were virtually unknown in his lifetime and are still largely unacknowledged today. As a mathematician, he was a pioneer in the clarification and rigorization of mathematical analysis; as a philosopher, he may be considered a forerunner of the analytic movement later to emerge with Frege and Russell.Rusnock's account of Bolzano's work is laid out in five chapters and two (...) appendices. The introductory first chapter consists of an overview of Bolzano's philosophy and his account of scientific theories. For Bolzano, the importance of such theories—as in mathematics—is their formal structure. Unlike his philosophical predecessors, Bolzano held that the goal of scientific presentation is not to maximize certainty, but rather to set out the objective order of truth.Chapter 2 is an analysis of Bolzano's early work, Contributions to a Better Founded Presentation of Mathematics, in which a number of his characteristic doctrines concerning mathematics are adumbrated. In sharp contradistinction to Kant, Bolzano thought that the methodology of mathematics is logic, and that mathematics should be founded independently of epistemology. In the Contributions Bolzano formulates a ‘thoroughgoing refutation of Kant's account of mathematical knowledge’, repudiating in particular …. (shrink)

This edition includes, in addition to the most pertinent sections of The Fable's two volumes, a selection from Mandeville's An Enquiry into the Origin of Honor and selections from two of Mandeville's most important sources: Pierre Bayle and the Jansenist Pierre Nicole. Hundert's Introduction places Mandeville in a number of eighteenth-century debates--particularly that of the nature and morality of commercial modernity--and underscores the degree to which his work stood as a central problem, not only for his immediate English contemporaries, but (...) for such philosophers as Hume, Rousseau, and Kant. The selections are substantive enough to faithfully represent Mandeville the social theorist, and compact enough to be used in courses that can afford to spend no more than a week on his work. (shrink)

Presents Bernard Lonergan's five "verbum" articles that originally appeared in Theological studies. For Thomist students and scholars this "verbum" study offers a careful appraisal of the Thomist theory of knowledge as well as an introduction to the concepts found in Father Lonergan's "Insight". Since the concept of "verbum" dynamically affects the thought of Aquinas, it is necessary to grasp this concept to understand Thomist metaphysics and rational psychology. Lonergan has carefully analyzed and explicitly outlined "verbum"--An integral part of the (...) Thomist theory of knowledge. "Verbum" is examined as a tool of definition and for its impact on understanding, logical thought procession and related ideas stemming from "verbum". Discusses "the word" and its relation to abstraction. Focusses on St. Thomas' immediate concern in finding in Aristotle the point of insertion for Augustinian thought and in fusing a phenomenology of the subject with a psychology of the soul. (shrink)

In Science and Ethics, Bernard Rollin examines the ideology that denies the relevance of ethics to science. Providing an introduction to basic ethical concepts, he discusses a variety of ethical issues that are relevant to science and how they are ignored, to the detriment of both science and society. These include research on human subjects, animal research, genetic engineering, biotechnology, cloning, xenotransplantation, and stem cell research. Rollin also explores the ideological agnosticism that scientists have displayed regarding subjective experience in (...) humans and animals, and its pernicious effect on pain management. Finally, he articulates the implications of the ideological denial of ethics for the practice of science itself in terms of fraud, plagiarism, and data falsification. In engaging prose and with philosophical sophistication, Rollin cogently argues in favor of making education in ethics part and parcel of scientific training. (shrink)

Current models of auditory verbal hallucinations tend to focus on the mechanisms underlying their occurrence, but often fail to address the content of the auditory experience. In other words, they tend to ask why there are AVHs at all, instead of asking why, given that there are AVHs, they have the properties that they have. One such property, which has been largely overlooked and which we will focus on here, is why the voices are often experienced as coming from agents, (...) and often specific, individualised agents. In this article, we argue not only that the representation of agents is important in accurately describing many cases of AVH, but also that deeper reflection on what is involved in the representation of agents has potentially vital consequences for our aetiological understanding of AVH, namely, for understanding how and why AVHs come about. (shrink)

Intentionalism is the claim that the phenomenological properties of a perceptual experience supervene on its intentional properties. The paper presents a counter-example to this claim, one that concerns visual grouping phenomenology. I argue that this example is superior to superficially similar examples involving grouping phenomenology offered by Peacocke (Sense and Content, Oxford: Oxford University Press), because the standard intentionalist responses to Peacocke’s examples cannot be extended to mine. If Intentionalism fails, it is impossible to reduce the phenomenology of an experience (...) to its content. (shrink)

The Prague Philosopher Bernard Bolzano (1781-1848) has long been admired for his groundbreaking work in mathematics: his rigorous proofs of fundamental theorems in analysis, his construction of a continuous, nowhere-differentiable function, his investigations of the infinite, and his anticipations of Cantor's set theory. He made equally outstanding contributions in philosophy, most notably in logic and methodology. One of the greatest mathematician-philosophers since Leibniz, Bolzano is now widely recognised as a major figure of nineteenth-century philosophy. Praised by Husserl as “one (...) of the greatest logicians of all times,” he has also been recognised by Michael Dummett as one of the first modern analytic philosophers and by Alberto Coffa as the founder of the “semantic tradition.” This volume contains English translations of the essay “On the Mathematical Method,” a concise introduction to Bolzano’s logic and philosophy of mathematics, as well as substantial selections from his correspondence with Franz Exner, Professor of Philosophy at the Charles University in Prague in the 1830s and 40s. It will be of interest to students of Austrian philosophy, the development of analytic philosophy, the philosophy of language, and the history and philosophy of logic and mathematics. (shrink)

The question I shall attempt to address in what follows is an essentially historical one, namely: Why did analytic philosophy emerge first in Cambridge, in the hands of G. E. Moore and Bertrand Russell, and as a direct consequence of their revolutionary rejection of the philosophical tenets that form the basis of British Idealism? And the answer that I shall try to defend is: it didn't. That is to say, the ‘analytic’ doctrines and methods which Moore and Russell embraced in (...) the very last years of the nineteenth century were not revolutionary, did not emerge first in Cambridge, were the creation of neither Russell nor Moore and cannot be explained by appeal to facts concerning British Idealism. The adoption of the doctrines and methods which characterised the earliest manifestations of British analytic philosophy are to be explained neither by reference to anything specifically British, nor by appeal to anything unproblematically philosophical. Or so I shall argue. (shrink)

These twenty-five essays span from ancient philosophy to Wittgenstein and express Williams’s conviction that studying the history of philosophy is an essential part of philosophy. Williams distinguishes a historical approach , which is focused on the context of a historical text and aims at the question of why some theory came up, from doing “history of philosophy,” aiming at a contribution to current philosophical debates by denying transhistorical identity and making use of the “alienation effect.”.

From the beginning the French philosopher Claude Lefort has set himself the task of interpreting the political life of modern society-and over time he has succeeded in elaborating a distinctive conception of modern democracy that is linked to both historical analysis and a novel form of philosophical reflection. This book, the first full-scale study of Lefort to appear in English, offers a clear and compelling account of Lefort's accomplishment-its unique merits, its relation to political philosophy within the Continental tradition, and (...) its great relevance today. Much of what passes for political philosophy in our day is merely politicized philosophical concepts, a distinction author Bernard Flynn underscores as he describes the development of Lefort's truly political philosophy-its ideas formed in response to his own political experience and to the work of certain major figures within the tradition of political thought. Beginning with Lefort's most important single work, his book on Machiavelli, Flynn presents the philosopher's conceptions of politics, modernity, and interpretation in the context within which they took shape. He then draws on a wide variety of Lefort's works to explicate his notions of premodern and modern democracy in which totalitarianism, in Lefort's singular and highly influential theory, is identified as a permanent problem of modernity. A valuable exposition of one of the most important Continental philosophers of the post-World War II period, Flynn's book is itself a noteworthy work of interpretive philosophy, pursuing the ideas and issues addressed by Lefort to a point of unparalleled clarity and depth. (shrink)

The term conceptual simulation refers to a type of everyday reasoning strategy commonly called “what if” reasoning. It has been suggested in a number of contexts that this type of reasoning plays an important role in scientific discovery; however, little direct evidence exists to support this claim. This article proposes that conceptual simulation is likely to be used in situations of informational uncertainty, and may be used to help scientists resolve that uncertainty. We conducted two studies to investigate the relationship (...) between conceptual simulation and informational uncertainty. Study 1 was an in vivo study of expert scientists; the results suggest that scientists do use conceptual simulation in situations of informational uncertainty, and that they use conceptual simulation to make inferences from their data using the analogical reasoning process of alignment by similarity detection. Study 2 experimentally manipulated experts' level of uncertainty and provides further support for the hypothesis that conceptual simulation is more likely to be used in situations of informational uncertainty. Finally, we discuss the relationship between conceptual simulation and other types of reasoning using qualitative mental models. (shrink)

Cette contribution propose une analyse comparée de la manière dont Bernard de Fontenelle, pour l’Académie des sciences de Paris, et Samuel Formey, pour l’Académie des sciences et des belles-lettres de Berlin, théorisent le rôle et le mode de fonctionnement des académies, ainsi que leur inscription dans la catégorie générale d’histoire de l’esprit humain. Cela permet de montrer comment leur fonction épistémologique est en étroite relation avec le statut politique qui leur est conféré.