This paper addresses several questions related to the nature, production, and use of animal-human (a-h) chimeras. At the heart of the issue is whether certain types of a-h chimeras should be brought into existence, and, if they are, how we should treat such creatures. In our current research environment, we recognize a dichotomy between research involving nonhuman animal subjects and research involving human subjects, and the classification of a research protocol into one of these categories will trigger different ethical standards (...) as to the moral permissibility of the research in question. Are a-h chimeras entitled to the more restrictive and protective ethical standards applied to human research subjects? We elucidate an Aristotelian-Thomistic metaphysical framework in which to argue how such chimeras ought to be defined ontologically. We then examine when the creation of, and experimentation upon, certain types of a-h chimeras may be morally permissible. (shrink)

The idea that nous comes from without, deriving from Aristotle’s Generation of Animals II.3, became a key element in late ancient and Medieval accounts of human rationality drawing on Aristotle’s De Anima. But two very different understandings of the concept were around (often occurring next to each other): either it was taken to refer to the human capacity for thought and its origin outside the natural ontogenetic process; or it was taken to stand for the most perfect act of thought, (...) existing separately as the supreme divinity, and becoming, hopefully, ours at the very climax of human development. This paper shows how these two influential conceptions derive from the work of the two greatest scholars of Aristotle’s school, Theophrastus and Alexander of Aphrodisias, respectively. More to the point: it shows that (i) there is an intriguing philosophical story to be told of how the notion developed from one understanding to the other, this being the core of a larger story of nous from without in Western thought; and that (ii) this story sheds new light on what was at stake in the early – genuinely Peripatetic – reception of Aristotle’s account of nous (as contrasted with later, heavily Platonized, interpretations). (shrink)

In the polarized debates about abortion and voluntary euthanasia, disability advocates, who normally align with left-wing social forces, have tended to side with conservative and religious voices in expressing concerns about the impact of technological and sociopolitical developments on disabled futures. This paper draws on the social model of disability and the virtue ethics tradition to explain the alignment between the religious and disability perspectives, and the theory of transformative choice to highlight the limits and biases of the pro-choice logic. (...) Yet, it also recognizes the inherent contradiction of disabled advocates taking a paternalistic position against the personal agency of women and people facing terminal illnesses. A disability perspective serves the discussion of abortion and euthanasia as an encouragement to work together for the building of a society that enables people with diverse disabilities to exist and flourish, and helps pregnant women, people facing disabling and terminal illnesses, and politicians and social influencers to make informed choices. (shrink)

Response to Jan Deckers' critique of the author's earlier article on the beginning of personhood from a Thomistic perspective in which the author revises and further refines his view.

(2006). Metaphysics and Morality at the Boundaries of Life. Journal of Medicine and Philosophy: Vol. 31, No. 2, pp. 97-105.

The author seeks to respond to the philosophical appeal of W. Norris Clarke, S.J., “to uncover the personalist dimension lying implicit within the fuller understanding of the very meaning and structure of the metaphysics of being itself, not hitherto explicit in either the metaphysical or personalist traditions themselves.” She does this by discussing the distinctions drawn by Karol Wojtyla: (1) between a human being’s personhood and his humanity, and (2) between the ontological dignity and the ethical dignity of the human (...) person. (shrink)

This research aims to contribute to the discussion on the subject of Abortion by analyzing the concepts of formed and unformed in the Septuagint in Exodus 21:22-23, and the opinions of St. Augustine and St. Thomas Aquinas on the social status of the fetus. The Greek version of the Hebrew Bible, which was translated in stages into Greek between the 3rd century BC and the 1st century BC, presents a different point of view than that found in the Hebrew text (...) of Exodus 21:22-23. It introduces the notions of formed and unformed fetus. In other words, he understood the fetus (embryo) in a perspective of developing reality. Augustine and Aquinas, two important names in Christian theology, seem to have reflected a tradition that granted protection to the unborn child according to the stages of its development. The discussion around the topic of abortion is complex, very sensitive, but it should not be avoided. Bibliographical research was used as methodology. As a result, it will be pointed out that the biblical presentation of human beings does not begin with an explanation of conception or the fetal period. It does not discuss the point at which the embryo attains the full moral status of a human person. Thus, for this research, the discussion about abortion must necessarily take into account issues such as risk to the pregnant woman's life; fetal malformation etc. But, above all, it must be centered on the personality of the pregnant woman. (shrink)

The President’s Council on Bioethics has addressed the moral status of human preembryos in its reports on stem cell research and human therapeutic cloning. Although the Council has been criticized for being hand-picked to favor the right-to-life viewpoint concerning human preembryos, it has embraced the idea that the right-to-life position should be defended in secular terms. This is an important feature of the Council’s work, and it demonstrates a recognition of the need for genuine engagement between opposing sides in the (...) debate over stem cell research. To promote this engagement, the Council has stated in secular terms several arguments for the personhood of human preembryos. This essay presents and critiques those arguments, and it concludes that they are unsuccessful. If the best arguments in support of the personhood of human preembryos have been presented by the Council, then there are no reasonable secular arguments in support of that view. (shrink)