The sustainability movement, currently gathering considerable attention from architects, derives much of its moral foundation from the theoretical initiatives of environmental ethics. How is the value of sustainability to mesh with architecture’s time-tested values? The idea that an ethic of sustainability might serve architects’ efforts to reground their practices in something that opposes consumer values of the marketplace has intuitive appeal and makes a certain amount of sense. However, it is far from obvious that the sustainability movement provides a strong (...) enough conceptual framework for an entire designphilosophy. This issue is complicated by two different sustainable design outlooks which parallel two conceptions of environmental ethics: the practical and the radical. Neverthleless, sustainability need not resort to the philosophical excess of its radical branch to help foster a new public-spiritedness. (shrink)

In assessing ethical issues concerning the sex-industry, feminist liberalism ought to combine the concern for the worker that is central to its treatment of prostitution, with sensitivity to the social and cultural embeddedness of self that is central to its treatment of pornography. That would enable us to then look at live-actor pornography as a form of prostitution that raises additional questions about third party consumption — and analysis both more theoretically coherent and practically useful.

Dewey's pragmatist aesthetics attempts to reconcile the tension between public and private demands on the work of art that has troubled contemporary architecture since the passing of modernism. As a public philosophy of art it holds tremendous promise; but architects will likely find Dewey's characterization of the individual encounter with the work of art less satisfactory. This suggests that Dewey's pragmatism may have over-committed to a singular aesthetic interpretation of the world, lacking the philosophical distance sought by architects. However, pragmatism (...) might inform the reconciliation project as a helpful aesthetic outlook. (shrink)

Dewey's pragmatist regard for the place of rules in moral deliberation occupies a middle ground between the rejection of rules found in Jonathan Dancy's moral particularism and full scale subsumptivism of actions to rules. Concerning the authority rules should play in one's moral thinking, however, Dewey is closely aligned with the particularists: he rejects their authority over individual cases. This essay takes Dewey's naturalistic approach to the derivation of rules to argue that in some cases it is ultimately beneficial to (...) allow rules to occupy a place of authority in moral thinking. (shrink)

I am grateful to Donald Ainslie, Lisa Austin, Michael Blake, Abraham Drassinower, David Dyzenhaus, George Fletcher, Robert Gibbs, Louis-Philippe Hodgson, Sari Kisilevsky, Dennis Klimchuk, Christopher Morris, Scott Shapiro, Horacio Spector, Sergio Tenenbaum, Malcolm Thorburn, Ernest Weinrib, Karen Weisman, and the Editors of Philosophy & Public Affairs for comments, and audiences in the UCLA Philosophy Department and Columbia Law School for their questions.

This largely expository lecture deals with aspects of traditional solid geometry suitable for applications in logic courses. Polygons are plane or two-dimensional; the simplest are triangles. Polyhedra [or polyhedrons] are solid or three-dimensional; the simplest are tetrahedra [or triangular pyramids, made of four triangles]. -/- A regular polygon has equal sides and equal angles. A polyhedron having congruent faces and congruent [polyhedral] angles is not called regular, as some might expect; rather they are said to be subregular—a word coined for (...) this lecture. To repeat, a subregular polyhedron has congruent faces and congruent [polyhedral] angles. A subregular polyhedron whose faces are all regular polygons is regular—using standard terminology. -/- Geometers before Euclid showed that there are “essentially” only five regular polyhedra: every regular polyhedron is a tetrahedron (4 faces), a hexahedron or cube (6 faces), an octahedron (8 faces), a dodecahedron (12 faces), or an icosahedron (20 faces). -/- The first question is whether there are subregular polyhedra that are not regular. For example, are there tetrahedra having congruent angles and congruent triangular faces but whose faces are not equilateral triangles? -/- Another question is the classification of subregular polyhedra if they exist. For example, considering the fact that the regular tetrahedra all have equilateral triangles as faces, we ask which triangles other than equilaterals are faces of subregular tetrahedra. Similarly, considering the fact that the regular hexahedra all have squares as faces, we ask which quadrangles other than squares are faces of subregular hexahedra. -/- After introductory remarks that include historical and philosophical points, we concentrate on tetrahedra. A triangle that is congruent to each of the four faces of a tetrahedron is called a generator of the tetrahedron. The main result proved is that every acute triangle is a generator of a subregular tetrahedron. The proof includes an algorithm –implementable with scissors and paper –that constructs from any given acute triangle a subregular tetrahedron whose faces are congruent to the given triangle. -/- Algorithm: Given any acute triangle. Construct a similar triangle whose sides are double the sides of the given triangle. Draw the three lines connecting the three midpoints of the sides (making four triangles congruent to the given triangle—a central triangle surrounded by three peripheral triangles). Make three “hinges” along the lines connecting the midpoints. “Fold” the peripheral triangles together (into a tetrahedron). [LIGHTLY EDITED VERSION OF PRINTED ABSTRACT] Acknowledgements: William Lawvere, Colin McLarty, Irvin Miller, Frango Nabrasa, Lawrence Spector, Roberto Torretti, and Richard Vesley. -/- . (shrink)

The proposed theoretical motivation for legal fictionalism begins by focusing upon the seemingly supernatural powers of creation and control that mere mortals exercise over legal things, as a subclass of socially constructed things. This focus brings to the fore a dilemma of uncharitableness concerning the ontological commitments expressed in the discourse of whole societies about such things. Either, there is widespread equivocation as to the fundamental concept expressed by terms such as ‘existence’ or our claims about legal and other institutional (...) things are never really true. When stated as a dilemma, rather than assuming either horn from the outset, our broader social practice of fiction-telling yields a reason to prefer the fictionalist horn. -/- I differentiate three grades of legal fictionalism and contrast strong legal fictionalism with Horacio Spector’s weak form. Only the stronger form has it that engagement in a fictional discourse of law can provide reasons for legal decision-making independent of moral opinions or policy considerations. This stance relies on the claim that maintaining a fictional discourse with respect for its integrity justifies inferences to conclusions about a fictional domain beyond what is described in existing expressions of the discourse. Focusing on ontology allows an analogy between a fictional discourse of law and literary or popular fiction, in which context such inferences are more obviously persuasive. I argue that this notion of respect for the integrity of such a discourse saves legal formalist jurisprudence from the indeterminacy objections of legal realists. (shrink)