Art is without doubt a powerful agent in determining how nature appears to us. Andrew Forge describes seeing tree leaves in sunlight, and ‘thinking Pissarro’. ‘I am wrapped round by Impressionism and the leaves look like brush strokes’. To Harold Osborne, once one has been impressed by Van Gogh's painting of certain objects, ‘it is difficult ever again to see the objects uninfluenced by Van Gogh's vision of them’.

This article explores the relation between the concept of symmetry and its formalisms. The standard view among philosophers and physicists is that symmetry is completely formalized by mathematical groups. For some mathematicians however, the groupoid is a competing and more general formalism. An analysis of symmetry that justifies this extension has not been adequately spelled out. After a brief explication of how groups, equivalence, and symmetries classes are related, we show that, while it’s true in some instances that groups are (...) too restrictive, there are other instances for which the standard extension to groupoids is too un restrictive. The connection between groups and equivalence classes, when generalized to groupoids, suggests a middle ground between the two. *Received July 2007. †To contact the authors, please write to: Alexandre Guay, UFR Sciences et Techniques, Université de Bourgogne, 9 Avenue Alain Savary, 21078 Dijon Cedex, France; e‐mail: [email protected] ; or to Brian Hepburn, Department of Philosophy, University of British Columbia, 1866 Main Mall E370, Vancouver, BC, Canada V6T 1Z1; e‐mail: [email protected]. (shrink)

Drawing on the work of Jurgen Habermas, Seyla Benhabib has developed a system of communicative or discourse ethics. Her approach is said to respect differences and to count context as important but she also claims that it is postmetaphysical. I dispute this claim on two grounds. First, I argue that any system of ethics must be grounded by metaphysical commitments. Second, I show that in using elements of both Kantian and Aristotelian theory, Benhabib has imported metaphysical underpinnings into her theory (...) and that these implicit understandings of what the moral enterprise is about, ought to be made explicit. Finally, a brief exploration of some contemporary ethical reflection and problem solving suggests that a shared metaphysical foundation is essential to ethical discourse. (shrink)

The idea of aesthetic disinterestedness has been a central concept in aesthetics since the late eighteenth century. This exchange offers a contemporary reconsideration of disinterestedness from different sides of the question.

Aesthetic theories, like theories of morals, are roughly divisible into those that maintain an analytic neutrality and those that attempt to arrive at “first-order”, practical judgments. A philo sopher of language may confine the legitimate task of aesthetics to the clarification of talk about works of art and about the fashioning of works of art. But other aestheticians, perhaps a more numerous group, see their study as far more intimately related to art criticism, and as able, without the committing of (...) naturalistic or any other fallacies, to reach particular aesthetic value-judgments. Between these extreme positions lies a great diversity of theories which, while clearly differentiating aesthetics from art criticism, still carry practical implications of a general kind. The conceptual scaffolding into which they fit the art-forms, their notion of what is central to aesthetic experience and what peripheral, their account of artistic creativity-all these can be indirectly evaluative, can subtly influence and alter one's responses to actual aesthetic objects. (shrink)

Fr. Bernard Lonergan's writings have not so far received much discussion in British philosophical journals, although they contain one of the most fully-developed contemporary presentations of Catholic Christianity and have a substantial and distinctive philosophical content. They have not lacked theological commentators, both in print and in conferencediscussions. The present article has three aims: to draw attention to Lonergan's work and its philosophical relevance; to notice the publication of his latest book, Method in Theology, and to venture some critical comments (...) on certain arguments about the intelligibility of being, being and the good, and God, in his book Insight. These arguments are central to Lonergan's account of theism, a theism which, in its orthodox Roman Catholic form, is presupposed by Method in Theology. The books are organically interrelated. One admirer of Lonergan described the newer book as ‘the book [Lonergan] originally set out to write’. (shrink)

This volume contains the first publication in book form of an English translation of Thomas Aquinas's controversial disputed question De unione Verbi incarnati. This disputed question is a remarkable portal into the Angelic Doctor's theology of the hypostatic union, which is recognized as an area in which Aquinas forged some of his most original and penetrating articulations of the Christian faith. In the De unione Verbi incarnati Aquinas presents in five articles material that occupies more than eighteen questions in the (...) third part of the Summa theologiae. The attribution of an esse secundarium to Christ, in the fourth article of the De unione, has been the object of intense debate, for it seems to contradict the account of the Summa. In addition to Professor Nutt's English translation, the volume includes the critical Latin text published by Barbara Bartocci, Klaus Obenauer, and Walter Senner, as well as a substantial introduction. Professor Nutt's introduction carefully unfolds the historical background, technical concepts, sources, and speculative claims needed for understanding the breadth of the biblical and metaphysical contemplation represented in this work; it also includes a detailed exploration of the debate over the fourth article. (shrink)