‘After it, the philosophy of perception cannot be discussed in ways it usually was discussed before.’ This is said about Sense and Sensibilia by Mr Bernard Williams in an article, ‘J. L. Austin's philosophy’, published in the Oxford Magazine of 6 December 1962. It is not quite clear what Mr Williams means by the remark. It might be understood as an endorsement of Austin's insistence that philosophers have lapsed into crudity and error through their neglect of distinctions marked by the (...) rich variety of linguistic expressions in ordinary use. But Mr Williams himself in his article makes some effective criticisms of Austin's opinion that ordinary language is a reservoir of philosophically significant distinctions, and points out also that Austin's own practice in these lectures did not exhibit any close connection between his survey of the variety of the uses of such words as ‘look’, ‘seem’, ‘appear’, and his criticism of theories of perception. (shrink)

ObjectiveTo compare techniques for computing clustering and switching scores in terms of agreement, correlation, and empirical value as predictors of incident cognitive impairment.MethodsWe transcribed animal and letter F fluency recordings on 640 cases of ICI and matched controls from a national epidemiological study, amending each transcription with word timings. We then calculated clustering and switching scores, as well as scores indexing speed of responses, using techniques described in the literature. We evaluated agreement among the techniques with Cohen’s κ and calculated (...) correlations among the scores. After fitting a base model with raw scores, repetitions, and intrusions, we fit a series of Bayesian logistic regression models adding either clustering and switching scores or speed scores, comparing the models in terms of several metrics. We partitioned the ICI cases into acute and progressive cases and repeated the regression analysis for each group.ResultsFor animal fluency, we found that models with speed scores derived using the slope difference algorithm achieved the best values of the Watanabe–Akaike Information Criterion, but with good net reclassification improvement only for the progressive group. For letter fluency, different models excelled for prediction of acute and progressive cases. For acute cases, NRI was best for speed scores derived from a network model, while for progressive cases, the best model used clustering and switching scores derived from the same network model. Combining variables from the best animal and letter F models led to marginal improvements in model fit and NRI only for the all-cases and acute-cases analyses.ConclusionSpeed scores improve a base model for predicting progressive cognitive impairment from animal fluency. Letter fluency scores may provide complementary information. (shrink)

Peter Abelard (1079–1142 ce) was the most wide‐ranging philosopher of the twelfth century. He quickly established himself as a leading teacher of logic in and near Paris shortly after 1100. After his affair with Heloise, and his subsequent castration, Abelard became a monk, but he returned to teaching in the Paris schools until 1140, when his work was condemned by a Church Council at Sens. His logical writings were based around discussion of the “Old Logic”: Porphyry's Isagoge, aristotle'S Categories and (...) On Interpretation and boethius'S textbook on topical inference. They comprise a freestanding Dialectica (“Logic”; probably c.1116), a set of commentaries (known as the Logica [Ingredientibus], c. 1119) and a later (c. 1125) commentary on the Isagoge (Logica Nostrorum Petititoni Sociorum or Glossulae). In a work Abelard called his Theologia, issued in three main versions (between 1120 and c.1134), he attempted a logical analysis of trinitarian relations and explored the philosophical problems surrounding God's claims to omnipotence and omniscience. The Collationes (“Debates,” also known as “Dialogue between a Christian, a Philosopher and a Jew”; probably c.1130) present a rational investigation into the nature of the highest good, in which the Christian and the Philosopher (who seems to be modeled on a philosopher of pagan antiquity) are remarkably in agreement. The unfinished Scito teipsum (“Know thyself,” also known as the “Ethics”; c.1138) analyses moral action. (shrink)

I examine two strands in Locke's thought which seem to conflict with his corpuscularian sympathies: his repeated suggestion that natural philosophy is incapable of being made a science, and his claim that some of the properties of bodies--secondary qualities, powers of gravitation, cohesion and maybe even thought--are arbitrarily "superadded" by God. ;Locke often says that a body's properties flow from its real essence as the properties of a triangle flow from its definition. He is widely read as having thought that (...) if we had ideas of a body's real essence, we would be able to perceive a priori a necessary connection between that body's real essence and its observable properties. I argue that this leaves Locke's skepticism without any rationale, making it depend entirely upon our ignorance of corpuscular structures when in fact he never rules out the possibility of our acquiring ideas of corpuscular structures through improvements in microscopy. I argue that Locke's geometrical analogy is better understood as an endorsement of deductivism about scientific explanation. He thinks that knowledge of corpuscular structures is a necessary, but not a sufficient, condition for scientific knowledge of bodies. The deeper source of his skepticism is his view that we cannot have universal and certain knowledge of the laws of nature because they are contingent. ;I approach the subject of Locke's attitude toward mechanism by examining his superaddition doctrine. In contrast with M. R. Ayers, I attribute to Locke what I call strong voluntarism: the view that a body's powers to interact with other bodies are not fully determined by the essence of matter, and that they are at least partly determined by the will of God. I argue that Descartes and Boyle are also strong voluntarists, but that Locke's voluntarism differs in that he maintains that bodies have some powers which are not even partly explicable in terms of the motions of matter. Locke's position is thus incompatible with the mechanism of Descartes and Boyle. (shrink)

Some books are like parents, grandparents or old friends. They have been with us from our earliest days and one treats them almost with familiarity. They belong to one's youth and the recognition that they have been around for months and years keeps company with surprise. For philosophers such a book is A. J. Ayer's Language, Truth and Logic, first published over fifty years ago in 1936. There is a sense in which a similar point may be made about some (...) individuals, but discretion and good manners should deter us from succumbing to the philosophical disease of pressing an analogy too far. Suffice it to say that over a period during which most English speaking philosophers were content to work within a context which was significantly influenced by Ayer's clear and cajoling formulation of a twentieth century of empiricism, F. C. Copleston provided one of the few distinctive alternative philosophical perspectives on major metaphysical questions. This essay will reflect upon the influence of Ayer's Language, Truth and Logic some fifty years after its publication, upon the philosophical discussion of religion and theological questions. (shrink)

Sum rules are derived for the quantum wave functions of the Hadamard billiard in arbitrary dimensions. This billiard is a strongly chaotic (Anosov) system which consists of a point particle moving freely on a D-dimensional compact manifold (orbifold) of constant negative curvature. The sum rules express a general (two-point)correlation function of the quantum mechanical wave functions in terms of a sum over the orbits of the corresponding classical system. By taking the trace of the orbit sum rule or pre-trace formula, (...) one obtains the Selberg trace formula. The sum rules are applied in two dimensions to a compact Riemann surface of genus two, and in three dimensions to the only non-arithmetic tetrahedron existing in hyperbolic 3-space. It is shown that the quantum wave functions can be computed from classical orbits. Conversely, we demonstrate that the structure of classical orbits can be extracted from the quantum mechanical energy levels and wave functions (inverse quantum chaology). (shrink)

This work critically examines types of argument about issues in sexual morality. Its two aims are to show, with examples, how apparently abstract moral philosophy bears on practical problems, and to contribute to the resolution of issues that were controversial when it was written.

Forgetting has rarely been investigated in historical theory. Insofar as it attracted the attention of theorists at all, forgetting has ordinarily been considered to be a defect in our relationship to the past that should be overcome in one way or another. The only exception is Nietzsche who so provocatively sung the praises of forgetting in his On the Use and Abuse of History . But Nietzsche's conception is the easy victim of a consistent historicism and therefore in need of (...) correction. Four types of forgetting are identified in this essay. Central in the essay's argument is the fourth type. This is the kind of forgetting taking place when a civilization "commits suicide" by exchanging a previous identity for a new one. Hegel's moving account of the conflict between Socrates and the Athenian state is presented as the paradigmatic example of this kind of forgetting. Two conclusions follow from an analysis of this type of forgetting. First, we can now understand what should be recognized as a civilization's historical sublime and how the notions of the historical sublime and of collective trauma are related. Second, it follows that myth and history do not exclude each other; on the contrary, history creates myth. This should not be taken to be a defect of history, for this is precisely how it should be. (shrink)

This article focuses on the interaction between recipes unearthed from tombs datable to the Han dynasty and the early history of the materia medica. We observed that the two medicographic media, i.e. the materia medica and the recipes, share the following logical structure: [Substance] A [produces] → [effect] B Our arrow indicates a variety of relations, which the present article tries to categorize.

Taking as its point of departure a sharp critique of Rawls's influential A Theory of Justice, this book looks at politics from an aesthetic perspective.

The preceding paper described how all-pervasive was the influence that Paracelsus designated ‘astral’. In what sense, then, is it true that he placed restrictions, on astrological powers? The restriction applies to the more limited and usual sense of astrology, referring to the control of events on earth by the stars in the sky. Paracelsus was not prepared to hand over our fates entirely to a distant autocracy of the stars quite beyond our control.

We no longer have any texts, any past, but just interpretations of them. The evident multi -interpretability of a text causes it gradually to lose its capacity to function as arbiter in the historical debate. It is necessary to define a new link with the past based on a complete and honest recognition of the position in which we now see ourselves placed as historians. In recent years, many people have observed our changed attitude towards the phenomenon of information. For (...) postmodernism, science and information are independent objects of study which obey their own laws. Language and art are not situated opposite reality but are themselves a pseudo-reality and are therefore situated within reality. Because of the relation between the historiographical view and the language used by the historian to express his view - a relation which nowhere intersects the domain of the past -historiography possesses the same opacity and intensional dimension as art. The essence of postmodernism is precisely that we should avoid pointing out essentialist patterns in the past. There is reason to assume that our relation to the past and our insight into it will in future be of a metaphorical nature rather than a literal one. (shrink)

This book is the 1906 second edition of the Hulsean Lectures delivered at the University of Cambridge between 1901 and 1902. In these four lectures, F. R. Tennant challenges conventional teachings on Original Sin and the story of the Fall, arguing that his contemporaries had misinterpreted the biblical presentation of sin and its manifestations. Tennant aims to redefine the sin of both the race and the individual, and in doing so engages with traducianism and the philosophies of Malebranche, Kant and (...) Hegel. He argues that action predates modern conceptions of right and wrong, and that transgression is only sin if the actor is aware of what is morally right. Of course, these theories were met with great opposition, an opposition which Tennant uses the preface of this second edition to confront. These fascinating lectures and their appendages will be of great interest to scholars of Christian theology and the fin de siècle alike. (shrink)

Modern thought is sometimes presented as introducing a “turn to the subject” absent from ancient and medieval thought, although the schools of thought associated with Bernard Lonergan, Eric Voegelin, Leo Strauss, and the new natural law theory often find subjectivity already operative in the older forms. In this volume, sixteen leading scholars examine the turn to the subject in modern philosophy and consider its historical antecedents in ancient and medieval thought.

Professor Iggers's main target in his critique of my essay is my preference for the historicist over the Enlightenment conception of the past. I agree with Iggers that in contemporary historical theory and contemporary philosophy of language many effective arguments against historicism can be found. I argue, however, that these arguments lose much of their cogency if we recognize that the historicist notion of "the historical idea" can be redefined to satisfy both the requirements of actual historical practice and contemporary (...) philosophy of language. The main task of the contempo- rary theoretician is not to reject historicism but to recognize and to discover its intellectual riches, and to repair it whenever and wherever necessary. (shrink)