What is a race? Ernst Mayr (1904–2005) distinguishes between species in which biological change is continuous in space, and species in which groups of populations with different character combinations are separated by borders. In the latter species, the entities separated by borders are geographic races or subspecies. Many anthropology textbooks describe human races as discrete (or nearly discrete) clusters of individuals, geographically localized, each of which shares a set of ancestors, and hence can be distinguished from other races by their (...) common gene pool or by different alleles fixed in each. (shrink)

The target articles in this special section shed new light on the old question whether and how emotions influence action. However, what is missing is a straightforward motivational analysis—considering what we have learned from the science of explaining the “why” and “how” of behavior. I posit that emotions can influence the motivation process and thus action by fulfilling at least three functions: First, being grounded in needs, experienced emotions can function as strong need-like motivational states. Second, anticipated emotions can function (...) as incentives and justify action. Third, emotions can inform about progress in goal pursuit permitting behavior calibration. In summary, there is little doubt that emotions influence action. They can do so because they are hypo-phenomena of motivation. (shrink)

This essay questions the self-sufficiency of abstract, non-consequentialist, principles as a defence of a libertarian regime. The argument focuses on the difficulties involved in attempts to defend the priority of negative rights if an attractive conception of freedom and an agent-relative view about our reasons to respect rights are to be upheld. The paper closes by suggesting how libertarianism could gain support from various, and perhaps mutually irreducible and even conflicting, considerations in a wide consequentialist system.

Advances in assisted reproductive technologies can give rise to several ethical challenges. One of these challenges occurs when the reproductive desires of two individuals become incompatible and conflict. To address such conflicts, it is important to unbundle different aspects of (non)parenthood and to recognize the corresponding reproductive rights. This article starts on the premise that the six reproductive rights—the right (not) to be a gestational, genetic, and social parent—are negative rights that do not entail a right to assistance. Since terminating (...) or continuing a pregnancy is a form of assistance, the right (not) to be a gestational parent should enjoy primacy in conflicts. However, while refusing assistance may hinder the reproductive project of another person, “prior assistance” does not entitle someone to violate a reproductive right. Therefore, our analysis provides reasons to argue that someone has a right to unilaterally use cryopreserved embryos or continue the development of an entity in an extracorporeal gestative environment (i.e., ectogestation). Although this could lead to a violation of the right not to be a genetic parent, it does not necessarily entail a violation of the right not to be a social parent. (shrink)

In a concise, compelling argument, one of the founders and most influential advocates of the law and economics movement divides the subject into two separate areas, which he identifies with Jeremy Bentham and John Stuart Mill. The first, Benthamite, strain, "economic analysis of law," examines the legal system in the light of economic theory and shows how economics might render law more effective. The second strain, law and economics, gives equal status to law, and explores how the more realistic, less (...) theoretical discipline of law can lead to improvements in economic theory. It is the latter approach that Judge Calabresi advocates, in a series of eloquent, thoughtful essays that will appeal to students and scholars alike. (shrink)

While the transmission of Greek philosophy and science via the Muslim world to western Europe in the Middle Ages has been closely scrutinized, the fate of the Arabic philosophical and scientific legacy in later centuries has received less attention, a fault this volume aims to correct. The authors in this collection discuss in particular the radical ideas associated with Averroism that are attributed to the Aristotle commentator Ibn Rushd (1126-1198) and challenge key doctrines of the Abrahamic religions. This volume examines (...) what happened to Averroes's philosophy during the sixteenth, seventeenth and eighteenth centuries. Did early modern thinkers really no longer pay any attention to the Commentator? Were there undercurrents of Averroism after the sixteenth century? How did Western authors in this period contextualise Averroes and Arabic philosophy within their own cultural heritage? How different was the Averroes they created as a philosopher in a European tradition from Ibn Rushd, the theologian, jurist and philosopher of the Islamic tradition? (shrink)

Nuevos Ensayos Sobre Heráclito, pubblicato nel 2009 a cura di Enrique Hülsz Piccone, raccoglie gli atti del Secondo Symposium Eracliteum, tenutosi a Città del Messico nel giugno 2006. L’evento è importantissimo e, al tempo stesso, raro. Infatti, il primo Symposium si era tenuto a Chieti nel lontano 1981, giusto un quarto di secolo prima. Vero è che nel frattempo sono stati pubblicati, oltre a innumerevoli articoli e ai vari volumi della monumentale opera di Mouraviev, molti notevoli commenti...