The dual inheritance or gene–culture coevolution theory of human evolution was developed in the 1970s and 80s. Early work built mathematical theories derived from then-current work in human development, sociolinguistics, and the diffusion of innovations. More recently it has included a considerable amount of new empirical work. The theory has always had critics in evolutionary biology and the social and behavioral sciences. Morin's book critiques the theory from an alternate epidemiological or attraction theory of cultural evolution that doubts that imitation (...) and adaptation play significant roles in cultural evolution. Lewens's book is a wide-ranging analysis of critiques of gene–culture coevolution theory that finds most of them in error or at least not fatal to the project. His book includes a chapter on critiques based on considerations of human nature, of which Morin's book is one variant, and which Lewens argues are faulty. That is also my conclusion. (shrink)

Despite several decades of debate, the concept of disease remains hotly contested. The debate is typically cast as one between naturalism and normativism, with a hybrid view that combines elements of each staked out in between. In light of a number of widely discussed problems with existing accounts, some theorists argue that the concept of disease is beyond repair and thus recommend eliminating it in a wide range of practical medical contexts. Any attempt to reframe the ‘disease’ discussion should answer (...) the more basic sceptical challenge, and should include a meta-methodological critique guided by our pragmatic expectations of what the disease concept ought to do given that medical diagnosis is woven into a complex network of healthcare institutions. In this paper, we attempt such a reframing, arguing that while prevailing accounts do not suffer from the particular defects that prominent critics have identified, they do suffer from other deficits—and this leads us to propose an amended hybrid view that places objectivist approaches to disease on stronger theoretical footing, and satisfies the institutional-ethicaldesiderataof a concept of disease in human medicine. Nevertheless, we do not advocate a procrustean approach to ‘disease’. Instead, we recommend disease concept pluralism between medical and biological sciences to allow the concept to serve the different epistemic and institutional goals of these respective disciplines. (shrink)

In a near-future world of bionics and biotechnology, the main ethical and political issue will be the definition of who we are. Could biomedical enhancements transform us to such an extent that we would be other than human? Habermas argues that any genetic enhancement intervention that could potentially alter ‘human nature’ should be morally prohibited since it alters the child’s nature or the very essence that makes the child who he is. This practice also commits the child to a specific (...) life project or, in any case, it puts specific restrictions on his freedom to choose a life of his own. Ultimately, genetic enhancement jeopardizes the very foundations of moral equality. I contend that Habermas’ argument is based either on a series of presuppositions that imply a gross misunderstanding of evolution or the relevant factual information cocerning the action we are about to morally assess is not empirically supported. Hence, the argument from human nature is based on a series of false or problematic assumptions, and, as such, it fails to play the normative role intended by Habermas. (shrink)

Why should we become posthuman? There is only one morally compelling answer to this question: because posthumanity will be a more beneficial state, better than present humanity. This is the Posthuman Beneficence Argument, the centerpiece of the liberal transhumanist defense of “directed evolution.” In this article, I examine PBA and find it deficient on a number of lethal counts. My argument focuses on the writings of transhumanist philosopher Nick Bostrom, who has developed the most articulate defense of PBA and disclosed (...) its metaethical framework. I begin by locating PBA in the context of wider transhumanist claims for the desirability of posthumanity. I identify two crucial components: a model of deliberative rationality, requiring reasons to endorse claims; and the reasons themselves. I examine these two conditions, in turn, specifying the claims that they ask us to accept. Following Bostrom, I argue that there is a need for a foundationalist approach that assures us of some universality in the process of valuation. This is required to appropriately ground the moral continuity and appeal to universality that PBA demands. I examine the reasons why this approach ultimately fails, leaving posthumanity as an unintelligible concept with no moral force. I conclude by identifying a more mature approach to the debate on human enhancement, one that forfeits the grandiose but baseless claims too often found in transhumanist defenses of directed evolution. In short, posthumanity may be a good science fiction trope, but it has no normative force in the moral philosophy of human enhancement. (shrink)

The term ‘human nature’ can refer to different things in the world and fulfil different epistemic roles. Human nature can refer to a classificatory nature (classificatory criteria that determine the boundaries of, and membership in, a biological or social group called ‘human’), a descriptive nature (a bundle of properties describing the respective group’s life form), or an explanatory nature (a set of factors explaining that life form). This chapter will first introduce these three kinds of ‘human nature’, together with seven (...) reasons why we disagree about human nature. In the main, this chapter focuses on the explanatory concept of human nature, which is related to one of the seven reasons for disagreement, namely, the scientific authority inherent in the term ‘nature’. I will examine why, in a number of historical contexts, it was attractive to refer to ‘nature’ as an explanatory category, and why this usage has led to the continual contestation of the term within the sciences. The claim is that even if the contents of talk about ‘nature’ varied historically, the term’s pragmatic function of demarcation stayed the same. The term ‘nature’ conveys scientific authority over a territory; ‘human nature’ is a concept used to divide causes, as well as experts, and thereby conquer others who threaten to invade one’s epistemic territory. Analysing this demarcation, which has social as well as epistemic aspects, will help us to understand why the explanatory role has been important and why it is unlikely that people will ever agree on either the meaning or the importance of ‘human nature’ as an explanatory category. (shrink)

It is now widely accepted that a scientifically credible conception of human nature must reject the folkbiological idea of a fixed, inner essence that makes us human. We argue here that to understand human nature is to understand the plastic process of human development and the diversity it produces. Drawing on the framework of developmental systems theory and the idea of developmental niche construction we argue that human nature is not embodied in only one input to development, such as the (...) genome, and that it should not be confined to universal or typical human characteristics. Both similarities and certain classes of differences are explained by a human developmental system that reaches well out into the 'environment'. We point to a significant overlap between our account and the ‘Life History Trait Cluster’ account of Grant Ramsey, and defend the developmental systems account against the accusation that trying to encompass developmental plasticity and human diversity leads to an unmanageably complex account of human nature. (shrink)

Questions about what human nature is and how we can learn about it are difficult to answer. They are difficult not just because humans are complex creatures whose behavior is deeply embedded in the cultural environment that they are a part of, but also because it is not obvious what a concept of human nature is supposed to do or what it is for. The concept of human nature is often used as a normative concept, one that can serve as (...) a guide to action, showing us how we ought to behave. Less commonplace is an approach that seeks a descriptive account of human nature, one that characterizes what humans do and are disposed to do. I argue in this essay that the normative and descriptive approaches are at odds and that we should not expect a single concept of human nature to play both roles. Furthermore, there are deep problems with normative accounts. They often ignore or contradict the contemporary scientific worldview, and they often merely reflect biases about how we ought to be and what we ought to do. Human nature in this sense becomes politicized and serves in arguments about the moral status of issues like homosexuality, abortion, or biomedical enhancement. Because of the problems inherent in normative notions of human nature, I offer a descriptive alternative. My alternative attempts to align the scientific study of the human with human nature. (shrink)

In discussions about the ethics of enhancement, it is often claimed that the concept of ‘human nature’ has no helpful role to play. There are two ideas behind this thought. The first is that nature, human nature included, is a mixed bag. Some parts of our nature are good for us and some are bad for us. The ‘mixed bag’ idea leads naturally to the second idea, namely that the fact that something is part of our nature is, by itself, (...) normatively inert. The Inert View claims that nothing normative follows from the mere fact that some trait is a part of our nature. If the Inert View is correct, then appeals to the value or importance of human nature in debates about enhancement are indeed misplaced. We argue that the Inert View is wrong, and that a certain concept of human nature – which we refer to as human form – does have an important role to play in debates about enhancement. (shrink)

Foot , Hursthouse , and Thompson , along with other philosophers, have argued for a metaethical position, the natural goodness approach, that claims moral judgments are, or are on a par with, teleological claims made in the biological sciences. Specifically, an organism’s flourishing is characterized by how well they function as specified by the species to which they belong. In this essay, I first sketch the Neo-Aristotelian natural goodness approach. Second, I argue that critics who claim that this sort of (...) approach is inconsistent with evolutionary biology due to its species essentialism are incorrect. Third, I contend that combining the natural goodness account of natural-historical judgments with our best account of natural normativity, the selected effects theory of function, leads to implausible moral judgments. This is so if selected effects function are understood in terms of evolution by natural selection, but also if they are characterized in terms of cultural evolution. Thus, I conclude that proponents of the natural goodness approach must either embrace non-naturalistic vitalism or troubling moral revisionism. (shrink)

Celem artykułu jest krytyka kilku popularnych argumentów przeciwko wykorzystywaniu współczesnych osiągnięć biomedycznych do poprawiania ludzkiej kondycji fizycznej lub umysłowej. Na przykładzie prac Habermasa, Sandela, Fukuyamy omówię trzy argumenty tego typu odwołujące się do: 1) autonomii; 2) życia jako daru; 3) naturalnej równowagi. Na koniec pokażę, że sprzeciw względem niektórych propozycji biomedycznego polepszenia kondycji ludzkiej może być wynikiem swoistego błędu poznawczego, który psychologowie określają jako efekt status quo.

Despite its importance, the phenomenon of dehumanization has been neglected by philosophers. Since its introduction, the term “dehumanization” has come to be used in a variety of ways. In this paper, I use it to denote the psychological stance of conceiving of other human beings as subhuman creatures. I draw on an historical example – Morgan Godwyn's description of 17th century English colonists' dehumanization of African slaves and use this to identify three explanatory desiderata that any satisfactory theory of dehumanization (...) needs to address. I then summarize and criticize the theories of dehumanization developed by Jacques-Philippe Leyens and Nicholas Haslam, focusing on what I take to be their misappropriation of the theory of psychological essentialism, and show that both of these approaches suffer from major difficulties. I finish with an assessment of the degree to which Leyens' and Haslam's theories satisfy the three desiderata mentioned earlier, conclude that they fail to address them, and offer a brief sketch of a more satisfactory approach to understanding dehumanization. (shrink)

Recent philosophical work on the concept of human nature disagrees on how to respond to the Darwinian challenge, according to which biological species do not have traditional essences. Three broad kinds of reactions can be distinguished: conservative intrinsic essentialism, which defends essences in the traditional sense, eliminativism, which suggests dropping the concept of human nature altogether, and constructive approaches, which argue that revisions can generate sensible concepts of human nature beyond traditional essences. The different constructive approaches pick out one or (...) two of the three epistemic roles that are fused in traditional essentialist conceptions of human nature: descriptive, explanatory, definitional, or explanatory and definitional. These turns towards diverging epistemic roles are best interpreted pluralistically: there is a plurality of concepts of human nature that have to be clearly distinguished, each with a legitimate role in respective scientific contexts. (shrink)

Michael and has argued that species have intrinsic essences. This paper rebuts Devitt’s arguments, but in so doing it shores up the anti-essentialist consensus in two ways that have more general interest. First, species membership can be explanatory even when species have no essences; that is, Tamsin’s membership of the tiger species can explain her stripyness, without this committing us to any further claim about essential properties of tigers. Second, even the views of species that appear most congenial to essentialism—namely (...) phenetic and genotypic cluster accounts—do not entail strong forms of intrinsic essentialism. (shrink)

The term 'sociobiology' was introduced in E. O. Wilson's Sociobiology: The New Synthesis (1975) as the application of evolutionary theory to social behavior. Sociobiologists claim that many social behaviors have been shaped by natural selection for reproductive success, and they attempt to reconstruct the evolutionary histories of particular behaviors or behavioral strategies. This survey attempts to clarify and evaluate the aim of sociobiology. Given that a neutral account is impossible, this entry does the next best thing. It takes sociobiology as (...) well as its critics seriously. On the one hand, by demonstrating that current studies of evolution and human behavior are based on Darwin's arguments for evolution (properly updated), we gain a strong rationale for thinking that something closer to sociobiology than to disconnectionism is needed to properly understand human sociality. Nevertheless, this survey reconstructs sociobiology in its best light, according to its aims. Consequently, criticism of sociobiology as it is actually practiced is not ignored or dismissed. This approach reveals what is best about sociobiology, while remaining sensitive to many of the problems it has generated. (shrink)

Responsible Research and Innovation (RRI) is an important ethical, legal, and political theme for the European Commission. Although variously defined, it is generally understood as an interactive process that engages social actors, researchers, and innovators who must be mutually responsive and work towards the ethical permissibility of the relevant research and its products. The framework of RRI calls for contextually addressing not just research and innovation impact but also the background research process, specially the societal visions underlying it and the (...) norms and priorities that shape scientific agendas. This requires the integration of anticipatory, inclusive, and responsive dimensions, and the nurturing of a certain type of reflexivity among a variety of stakeholders, from scientists to funders. In this paper, we do not address potential limitations but focus on the potential contribution of philosophical reflection to RRI in the context of the Ethics and Society subproject of the Human Brain Project (HBP). We show how the type of conceptual analysis provided by philosophically oriented approaches theoretically and ethically broadens research and innovation within the HBP. We further suggest that overt inclusion of philosophical reflection can promote the aims and objectives of RRI. (shrink)

Liberal proponents of genetic engineering maintain that developing human germline modification technologies is morally desirable because it will result in a net improvement in human health and well-being. Skeptics of germline modification, in contrast, fear evolutionary harms that could flow from intervening in the human germline, and worry that such programs, even if well intentioned, could lead to a recapitulation of the scientifically and morally discredited projects of the old eugenics. Some bioconservatives have appealed as well to the value of (...) retaining our “given” human biological nature as a reason for restraining the development and use of human genetic modification technologies even where they would tend to increase well-being. In this article, I argue that germline intervention will be necessary merely to sustain the levels of genetic health that we presently enjoy for future generations—a goal that should appeal to bioliberals and bioconservatives alike. This is due to the population-genetic consequences of relaxed selection pressures in human populations caused by the increasing efficacy and availability of conventional medicine. This heterodox conclusion, which I present as a problem of intergenerational justice, has been overlooked in medicine and bioethics due to certain misconceptions about human evolution, which I attempt to rectify, as well as the sordid history of Darwinian approaches to medicine and social policy, which I distinguish from the present argument. (shrink)

Philippa Foot and Rosalind Hursthouse, along with other philosophers, have argued for a metaethical position, the natural goodness approach, that claims moral evaluations are, or are on a par with, teleological claims made in the biological sciences. Specifically, an organism’s flourishing is characterized by how well they function as specified by the species to which they belong. In this essay, I first sketch the Neo-Aristotelian natural goodness approach. Second, I argue that critics who claim that this sort of approach is (...) inconsistent with evolutionary biology due to its species essentialism are in- correct. Third, I consider the prospects of understanding ethical normativity as a species of biological teleology claiming that this would be incompatible with our considered moral judgments. Fourth, after presenting gene-culture coevolution theory, I argue that the only way of reconciling naturalism and normativity in accordance with the natural goodness approach requires amending the selected effects function account to include cultural evolution. However, this approach, though not biologically reductionistic, still generates claims incompatible with our considered moral judgments. Finally, I end with a discussion of methodology and revisionistic moral theories. (shrink)

Brain age prediction is a relatively new tool in neuro-medicine and the neurosciences. In research and clinical practice, it finds multiple use as a marker for biological age, for general health status of the brain and as an indicator for several brain-based disorders. Its utility in all these tasks depends on detecting outliers and thus failing to correctly predict chronological age. The indicative value of brain age prediction is generated by the gap between a brain’s chronological age and the predicted (...) age, the brain age gap (BAG). This article shows how the clinical and research use of brain age prediction tacitly pathologizes the states that it is sensitive to. It will be argued that the tacit character of this transformation conceals the need for its explicit justification. (shrink)

Appeals to human nature are ubiquitous, yet historically many have proven ill-founded. Why? How might frequent errors be remedied towards building a more robust and reliable scientific study of human nature? Our aim is neither to advance specific scientific or philosophical claims about human nature, nor to proscribe or eliminate such claims. Rather, we articulate through examples the types of errors that frequently arise in this field, towards improving the rigor of the scientific and social studies. We seek to analyze (...) such claims rhetorically, cognitively, and epistemically. Namely, how do we think about human nature? Claims about human nature, we show, are susceptible to widely exhibited deficits in cognitive tendencies such as framing, confirmation bias, satisficing, and teleological perspectives, as well as motivated reasoning. Such missteps foster methodological, empirical, and psychological mistakes and biases. Specifically, they promote the naturalizing error, whereby cultural ideology and values are projected onto an apparently objective description of nature. Concrete remedies are offered to aid scientists in conducting and reporting their research goals and findings more responsibly and effectively (relevant also to educators and other communicators who convey these findings publicly). Recommendations include acknowledging that human nature claims are often context-dependent, seeking multiple critical perspectives, and explicitly labeling uncertainties. (shrink)

This paper examines the neo-Aristotelian account of species natures as ‘life-forms’, which we owe to Philippa Foot, Michael Thompson and their defenders. I begin by developing two problems for their view: a problem of underdetermination and a problem generated by psychological work on ‘folk essentialism’. I move on to consider their important transcendental argument, which suggests that claims about life-forms are presupposed by all efforts to describe the organic world. In response, I sketch a neo-Kantian projectivist position, which agrees that (...) life-forms are presupposed in these contexts, while denying that such life-forms are real. This position makes a better sense of the phenomena cited in support of the neo-Aristotelian view, while avoiding the problems raised for that view in the first half of this paper. (shrink)

Humans often seek to improve themselves, whether through self-discipline or through the use of science and technology. At some point in the future, techniques might become available that will change humans to such a degree that they might have to be regarded as something other than human: posthuman. This essay tries to define the point at which such a human-to-posthuman metamorphosis may occur. This is achieved by discerning what is it that makes human substance distinct, i.e. what is the human (...) essence. This is accomplished by examining the features of the human body, looking at the mode of human existence in society and trying to grasp the importance of the body–soul relationship. Throughout the process, humans are compared to animals as well as entities from literature, film, and the gaming world. These are used as case studies to shape and test the ideas developed throughout the essay. This essay's conclusions might become useful when decisions will have to be made as to the legal status of posthumans,... (shrink)

Which domains of biology do philosophers of biology primarily study? The fact that philosophy of biology has been dominated by an interest for evolutionary biology is widely admitted, but it has not been strictly demonstrated. Here I analyse the topics of all the papers published in Biology & Philosophy, just as the journal celebrates its thirtieth anniversary. I then compare the distribution of biological topics in Biology & Philosophy with that of the scientific journal Proceedings of the National Academy of (...) Science of the USA, focusing on the recent period 2003–2015. This comparison reveals a significant mismatch between the distributions of these topics. I examine plausible explanations for that mismatch. Finally, I argue that many biological topics underrepresented in philosophy of biology raise important philosophical issues and should therefore play a more central role in future philosophy of biology. (shrink)

This paper aims to provide a clarification of the long debate on whether enhancement will or will not diminish authenticity. It focuses particularly on accounts provided by Carl Elliott and David DeGrazia. Three clarifications will be presented here. First, most discussants only criticise Elliott’s identity argument and neglect that his conservative position in the use of enhancement can be understood as a concern over social coercion. Second, Elliott’s and DeGrazia’s views can, not only co-exist, but even converge together as an (...) autonomy based theory of authenticity. Third, the current account of autonomy provided by DeGrazia fails to address the importance of rationality and the ability of self-correction, which, as a result impedes the theory to provide a fully developed account for authenticity. In conclusion, a satisfactory account of authenticity cannot focus only on identity or subjective preference. (shrink)

Volume 19, Issue 7, July 2019, Page 37-38.

The Darwinian theory of evolution is itself evolving and this book presents the details of the core of modern Darwinism and its latest developmental directions. The authors present current scientific work addressing theoretical problems and challenges in four sections, beginning with the concepts of evolution theory, its processes of variation, heredity, selection, adaptation and function, and its patterns of character, species, descent and life. The second part of this book scrutinizes Darwinism in the philosophy of science and its usefulness in (...) understanding ecosystems, whilst the third section deals with its application in disciplines beyond the biological sciences, including evolutionary psychology and evolutionary economics, Darwinian morality and phylolinguistics. The final section addresses anti-Darwinism, the creationist view and issues around teaching evolution in secondary schools. The reader learns how current experimental biology is opening important perspectives on the sources of variation, and thus of the very power of natural selection. This work examines numerous examples of the extension of the principle of natural selection and provides the opportunity to critically reflect on a rich theory, on the methodological rigour that presides in its extensions and exportations, and on the necessity to measure its advantages and also its limits. Scholars interested in modern Darwinism and scientific research, its concepts, research programs and controversies will find this book an excellent read, and those considering how Darwinism might evolve, how it can apply to the human sciences and other disciplines beyond its origins will find it particularly valuable. Originally produced in French (Les Mondes Darwiniens), the scope and usefulness of the book have led to the production of this English text, to reach a wider audience. This book is a milestone in the impressive penetration by Francophone scholars into the world of Darwinian science, its historiography and philosophy over the last two decades. Alex Rosenberg, R. Taylor Cole Professor of Philosophy, Duke University Until now this useful and comprehensive handbook has only been available to francophones. Thanks to this invaluable new translation, this collection of insightful and original essays can reach the global audience it deserves. Tim Lewens, University of Cambridge. (shrink)

New technologies facilitate the enhancement of a wide range of human dispositions, capacities, or abilities. While it is argued that we need to set limits to human enhancement, it is unclear where we should find resources to set such limits. Traditional routes for setting limits, such as referring to nature, the therapy-enhancement distinction, and the health-disease distinction, turn out to have some shortcomings. However, upon closer scrutiny the concept of enhancement is based on vague conceptions of what is to be (...) enhanced. Explaining why it is better to become older, stronger, and more intelligent presupposes a clear conception of goodness, which is seldom provided. In particular, the qualitative better is frequently confused with the quantitative more. We may therefore not need “external” measures for setting its limits – they are available in the concept of enhancement itself. While there may be shortcomings in traditional sources of limit setting to human enhancement, such as nature, therapy, and disease, such approaches may not be necessary. The specification-of-betterment problem inherent in the conception of human enhancement itself provides means to restrict its unwarranted proliferation. We only need to demand clear, sustainable, obtainable goals for enhancement that are based on evidence, and not on lofty speculations, hypes, analogies, or weak associations. Human enhancements that specify what will become better, and provide adequate evidence, are good and should be pursued. Others should not be accepted. (shrink)

After describing the disorder of psychopathy, I examine the theories and the evidence concerning the psychopaths’ deficient moral capacities. I first examine whether or not psychopaths can pass tests of moral knowledge. Most of the evidence suggests that they can. If there is a lack of moral understanding, then it has to be due to an incapacity that affects not their declarative knowledge of moral norms, but their deeper understanding of them. I then examine two suggestions: it is their deficient (...) practical reason or their stunted emotions that are at fault. The evidence supports both explanations. I conclude with an overview of the debate concerning whether they are morally or legally responsible for their actions. (shrink)

Peter Godfrey-Smith’s introduction to the philosophy of biology is excellent. This review questions one implication of his book, namely that Darwin’s case for the efficacy of natural selection was hampered by his ignorance of the particulate nature of inheritance. I suggest, instead, that Darwin was handicapped by an inability to effectively engage in quantitative population thinking. I also question Godfrey-Smith’s understanding of the role that Malthusian struggle plays in linking natural selection to the origination of new adaptive traits, and I (...) raise problems for his defence of apparently unproblematic conceptions of human nature. Finally, I highlight the welcome conception of a ‘philosophy of nature’ developed by Godfrey-Smith. (shrink)

In this commentary on Lewens, I argue that although his criticisms of Machery's conception of human nature are sound, I disagree with his conclusion that human nature cannot inform us regarding issues of human enhancement. I introduce a framework for understanding human nature, the “life history trait cluster account,” which aligns the concept of human nature with the human sciences and allows human nature to inform questions of human enhancement.

In this paper I give a short overview about the general implications of issues of human nature within the field of human enhancement. The first section of my contribution deals with a certain intertwining of human enhancement and the intrinsic claims of human nature, showing that a non-statistical concept of human nature can play a crucial role in the debate on human enhancement. After that, my aim is to validate that particular enhancements (e.g. neuro-enhancement) fall under the same normative criteria (...) as “normal enhancement”, only requiring a special contextual awareness to co-exist with it ethically. Methodically, my intention is to draw on quasi-naturalist approaches, which argue that our nature as humans is not a “mixed bag”, but seems to be wholly constituted by its species-related characteristics. As a result, we can state that our evaluations of living beings or life forms, which are also evaluations of our methods of medical treatments and of our ethical attitudes, depend on our picture of human nature. (shrink)

This Thesis reconsiders the prospects for an approach to global justice centring on the proposal that every human being should possess a certain bundle of goods, which would include certain members of a distinctive category: the category of capabilities. My overall aim is to present a clarified and well-developed framework, within which such claims can be made. To do this, I visit a number of regions of normative and metanormative theorising. I begin by introducing the motivations for the capability approach, (...) and clarifying some of its most distinctive features. Next, I focus on Martha Nussbaum's version of the approach, and identify several problems therein. The most important concerns epistemology, and especially the challenges that constructivist theories pose. The middle part of the Thesis presents an alternative, based on the work of John McDowell, which I argue has superior prospects. Then, I turn to two further problems: that of making sense of the universalistic aspirations of cosmopolitanism, and that of integrating the microscopic prescriptions of ethics with the macroscopic analyses of political philosophy. Using the Aristotelian interpretation of its core framework that I have developed, I conclude that the capability approach can provide compelling answers to important questions about global justice. (shrink)

History is littered with scientifically ill-founded claims about human nature. They frequently appear in normative contexts, projecting ideology or values onto nature (what we call the naturalizing...

A partir de una presentación general del concepto de especie aplicado a los humanos, este texto expone dos nociones generales sobre la naturaleza humana: la tipológica y la filogenética. Una vez expuestos los fundamentos de cada noción, se defiende una distinción entre naturaleza humana e identidad humana como dos aspectos que se han confundido respecto a este problema, pero que cumplen distintos roles en las explicaciones, por lo que se proponen como dos nociones complementarias. Así, la naturaleza humana estaría definida (...) en términos metafísicos y daría cuenta de la realidad biológica de los humanos desde un punto de vista filogenético, mientras que la identidad humana estaría definida en términos epistemológicos y daría cuenta de los conocimientos que tienen los humanos sobre ellos mismos, aludiendo a aspectos contingentes. (shrink)

I pose problems for the views that human nature should be the object of study in the social and behavioral sciences and that a concept of human nature is needed to guide research in these sciences. I proceed by outlining three research programs in the social sciences, each of which confronts aspects of human variation. Next, I present Elizabeth Cashdan and Grant Ramsey’s related characterizations of human nature. I go on to argue that the research methodologies they each draw on (...) are more productive resources for social scientists than their competing characterizations of human nature. (shrink)

In this essay, I begin with an overview of a traditional account of natural kinds, and then consider David Hull's critique of species as natural kinds and the associated notion of human nature. Second, I explore recent "liberal" accounts of human nature provided by Edouard Machery and Grant Ramsey and criticized by Tim Lewens. They attempt to avoid the criticisms of- fered by Hull. After examining those views, I turn to Richard Boyd's Homeostatic Property Cluster account of natural kinds which (...) is flexible but detailed enough to avoid Hull's criticisms but also those affecting the more recent views. We then consider what I call the "problem of variation." Fourth, I consider two case studies -- the basic emotions and facial expressions and inbreeding avoidance and incest taboos. I argue that the former is a component of a Boydian human nature but the latter is not. The conclusion is that if there is a human nature, it must be argued for on a case-by-case basis. And, one of most discussed cases thought to be part of our nature is simply not. (shrink)