Richard Jeffrey and Michael Goldstein have both introduced systematic approaches to the structure of opinion changes. For both approaches there are theorems which indicate great generality and width of scope. The main questions addressed here will be to what extent the basic forms of representation are intertranslatable, and how we can conceive of such programs in general.

Richard Jeffrey and Michael Goldstein have both introduced systematic approaches to the structure of opinion changes. For both approaches there are theorems which indicate great generality and width of scope. The main questions addressed here will be to what extent the basic forms of representation are intertranslatable, and how we can conceive of such programs in general.

The 65th year of a scholar who has devoted 40 years to editing and elucidating Robert Grosseteste provides us with a collection of essays. Not surprisingly, they emanate from colleagues and former students of Richard Dales and reflect his interest, among other concerns, in Grosseteste's aspectus et affectus - range of vision and disposition of mind - those twin peaks with which the 13th century thinker helped to get Christian thought through Aristotle without mutual destruction.

This book offers a concise survey of basic probability theory from a thoroughly subjective point of view whereby probability is a mode of judgment. Written by one of the greatest figures in the field of probability theory, the book is both a summation and synthesis of a lifetime of wrestling with these problems and issues. After an introduction to basic probability theory, there are chapters on scientific hypothesis-testing, on changing your mind in response to generally uncertain observations, on expectations of (...) the values of random variables, on de Finetti's dissolution of the so-called problem of induction, and on decision theory. (shrink)

Following in the fashion of Stephen Jay Gould and Peter Medawar, one of the world's leading scientists examines how "pure science" is in fact shaped and guided by social and political needs and assumptions.

One of our most brilliant evolutionary biologists, Richard Lewontin has also been a leading critic of those--scientists and non-scientists alike--who would misuse the science to which he has contributed so much. In The Triple Helix, Lewontin the scientist and Lewontin the critic come together to provide a concise, accessible account of what his work has taught him about biology and about its relevance to human affairs. In the process, he exposes some of the common and troubling misconceptions that misdirect (...) and stall our understanding of biology and evolution.The central message of this book is that we will never fully understand living things if we continue to think of genes, organisms, and environments as separate entities, each with its distinct role to play in the history and operation of organic processes. Here Lewontin shows that an organism is a unique consequence of both genes and environment, of both internal and external features. Rejecting the notion that genes determine the organism, which then adapts to the environment, he explains that organisms, influenced in their development by their circumstances, in turn create, modify, and choose the environment in which they live.The Triple Helix is vintage Lewontin: brilliant, eloquent, passionate, and deeply critical. But it is neither a manifesto for a radical new methodology nor a brief for a new theory. It is instead a primer on the complexity of biological processes, a reminder to all of us that living things are never as simple as they may seem. (shrink)

The classical rationalist philosophical tradition in Arabic reached its culmination in the writings of the twelfth-century Andalusian Averroes whose translated commentaries on Aristotle conveyed to the Latin West a rationalist approach which significantly challenged and affected theological and philosophical thinking in that Christian context. That methodology is shown at work in his Fasl al-Maqāl or Book of the Distinction of Discourse and the Establishment of the Relation of Religious Law and Philosophy (c. 1280), although the deeply philosophical character of his (...) subtle arguments has gone largely unappreciated. Here the philosophical foundations for his reasoning are exposed to reveal key elements of his rationalism. That approach is confirmed in his assertion in his later Long Commentary on the Metaphysics (c. 1290) that the highest worship of God is to be found first and foremost in the philosophical science of metaphysics rather than in the rituals of religion. (shrink)

"[This book] proposes new foundations for the Bayesian principle of rational action, and goes on to develop a new logic of desirability and probabtility."—Frederic Schick, _Journal of Philosophy_.

L'A. esamina in particolare il Commento grande al De anima. In primo luogo evidenzia l'insegnamento averroista in relazione al tema dell'intelletto e dell'individuo, in secondo luogo esamina alcune proposizioni relative all'immortalità dell'anima individuale, ma sottolinea la difficoltà di conciliare tali affermazioni di Averroè con la dottrina dell'intelletto. L'ultima parte dello studio propone un esame critico del recente studio di O.N. Mohammed, Averroes, Aristotle, and the Qur'an on Immortality «International Philosophical Quarterly» 33 37-55.

Averroes asserts in his Long Commentary on the De Anima and in his Long Commentary on the Metaphysics that principles of the science of metaphysics are established in the science of psychology. In psychology, human intellectual understanding is found to require the separate agent intellect for the coming to be of knowledge. The analysis of human psychology establishes that intellect must exist and must be separate from the human being in existence. Moreover there exists potency in those things called intellect, (...) thanks to the argument for the existence of the material intellect. (shrink)

This study of the interaction of the Aristotelian and Augustinian views of the soul traces the disarray of Latin concepts by 1240, the solutions of Bonaventure ...

’Ethical codes of conduct are superficial and distracting answers to the question of how to promote ethical behaviour in corporate life.’The author is Principal Lecturer in the Department of Business Studies at Manchester Metropolitan University.

Observers of metropolitan dysfunction have long advocated for a regional tier of government that could (among other things) equalize spending across local jurisdictions, pursue cooperative economic development policies, provide for fair share housing, rationalize land use, and coordinate transportation planning. For many good government reformers, right-scaling our fragmented metropolitan areas appears to be an obvious solution to interjurisdictional spillovers and competitive races-to-the-bottom. This article counsels caution. “Region hope”—the idea that the substantive problems of metropolitan governance can be solved regionally by (...) redrawing territorial boundaries to encompass ever-larger areas—is perennial. But territorial manipulation in aid of state centralization has significant drawbacks. The regional impulse exhibits some key features of failed social engineering efforts; seen through the lens of the state, these efforts privilege technocratic over democratic governance, bureaucratic over local knowledge, and mobile over immobile capital. That does not mean that regionalism should be resisted in all cases, but only that the costs of territorial manipulation should be weighed against its asserted benefits. (shrink)

Two of the most influential arguments in favour of the permissibility of abortion were put forward in the latter half of the twentieth century by Judith Jarvis Thomson and Mary Anne Warren. The implications of these arguments for unwilling putative fathers have largely not been considered. Some have argued that Thomson's defence of abortion might allow a man under certain circumstances to terminate his parental responsibilities and rights. To my knowledge, nobody has considered the implications of Warren's argument for men. (...) I will consider the implications of both arguments for men. I will argue that if they are successful defences of abortion then they are also successful in justifying a male counterpart to abortion which I label ‘elective abandonment’. I will not be defending or attacking these arguments as defences of abortion, but will defend the claim that they apply as well to elective abandonment as they do to abortion. (shrink)

Le progrès est conçu comme une accumulation d’acquisitions et de connaissances objectives, dont chaque culture est dotée. La « culture » consiste dans la réaction subjective d’un groupe humain à son « équipement de civilisation », dans l’emploi qui en est fait par des hommes vivant en commun pour conduire leur vie, et dans la manière dont cet emploi réagit sur les conduites psychologiques et sociales des hommes en question. Toute culture est singulière et unique, et elle suit son cours (...) particulier. Pourtant les cultures dépendent toutes du processus d’accumulation, et, sous l’influence de tous ces facteurs, elles sont liées en une « évolution » à plusieurs branches. (shrink)

In this paper I discuss logic from a naturalist point of view, characterizing it as those shared patterns of thought which are socially selected from among the various patterns of thought to which we are naturally inclined. Drawing on Evans-Pritchard's anthropology. I discuss a particular example of Zande thought. I argue that Evans-Pritchard's and Timm Triplett's analyses of this example make the mistake of applying Western logic to Zande beliefs and thus find a contradiction. I argue that from the naturalistic (...) point of view. Zande logic is different from Western logic and that there is no contradiction in Zande thought. (shrink)

Within evolutionary biology a distinction is frequently made between proximate and ultimate causes. One apparently plausible interpretation of this dichotomy is that proximate causes concern processes occurring during the life of an organism while ultimate causes refer to those processes (particularly natural selection) that shaped its genome. But ultimate causes are not sought through historical investigations of an organisms lineage. Rather, explanations referring to ultimate causes typically emerge from functional analyses. But these functional analyses do not identify causes of any (...) kind, much less ultimate ones. So-called ultimate explanations are not about causes in any sense resembling those of proximate explanations. The attitude, implicit in the term ultimate cause, that these functional analyses are somehow superordinate to those involving proximate causes is unfounded. Ultimate causes are neither ultimate nor causes. (shrink)

Richard Jeffrey is beyond dispute one of the most distinguished and influential philosophers working in the field of decision theory and the theory of knowledge. His work is distinctive in showing the interplay of epistemological concerns with probability and utility theory. Not only has he made use of standard probabilistic and decision theoretic tools to clarify concepts of evidential support and informed choice, he has also proposed significant modifications of the standard Bayesian position in order that it provide a (...) better fit with actual human experience. Probability logic is viewed not as a source of judgment but as a framework for explaining the implications of probabilistic judgments and their mutual compatability. This collection of essays spans a period of some 35 years and includes what have become some of the classic works in the literature. There is also one completely new piece, while in many instances Jeffrey includes afterthoughts on the older essays. (shrink)