This chapter examines the influence of the empirical sciences (e.g., physics, biology, psychology) in contemporary analytic philosophy, with focus on philosophical theories that are guided by findings from the empirical sciences. Scientific approaches to philosophy follow a tradition of philosophical naturalism associated with Quine, which strives to ally philosophical methods and theories more closely with the empirical sciences and away from a priori theorizing and conceptual analysis.

In this paper I argue that any adequate evolutionary ethical theory needs to account for moral belief as well as for dispositions to behave altruistically. It also needs to be clear whether it is offering us an account of the motivating reasons behind human behaviour or whether it is giving justifying reasons for a particular set of behaviours or, if both, to distinguish them clearly. I also argue that, unless there are some objective moral truths, the evolutionary ethicist cannot offer (...) justifying reasons for a set of behaviours. I use these points to refute Waller's claims that the illusion of objectivity plays a dispensable role in Ruse's theory, that my critique of Ruse's Darwinian metaethics is built on a false dilemma, that there is nothing to be distressed about if morality is not objective, and that ethical beliefs are subject to a kind of causal explanation that undermines their objectivity in a way that scientific beliefs are not. (shrink)

The error theory of moral judgment says that moral judgments, though often believed to be objectively true, never are. The tendency to believe in the objectivity of our moral beliefs, like the beliefs themselves, is rooted in objective features of human psychology, and not in objective features of the natural world that might exist apart from human psychology. In naturalized epistemology, it is tempting to take this view as the default hypothesis. It appears to make the fewest assumptions in accounting (...) for the fact that humans not only make moral judgments, but believe them to be, at least some of the time, objectively true. In this paper I argue that from an evolutionary perspective, the error theory is not the most parsimonious alternative. It is simpler to suppose that mental representations with moral content arose as direct cognitive and motivational responses to independent moral facts. (shrink)

The project is to traverse with quite novel questions, and as though with new eyes, the enormous, distant, and so well hidden land of morality—of morality that has actually existed, actually been lived.This essay offers a contribution to the consilience of the humanities, social sciences, and life sciences in accord with naturalism (in a spirit closer to Slingerland 2008 than Wilson 1998). Human beings have a shared nature produced by evolutionary history and modified by culture, where 'culture' refers to "information (...) capable of affecting individuals' behavior that they acquire from other members of their species through teaching, imitation, and other forms of social transmission" (Richerson and Boyd 2005, p. 5). .. (shrink)

In this article (1) I extract from Brentano’s works (three) formal arguments against “genealogical explanations” of ethical claims. Such explanation can also be designated as “naturalism” (not his appellation); (2) I counter these arguments, by showing how genealogical explanations of even apodictic moral claims are logically possible (albeit only if certain unlikely, stringent conditions are met); (3) I show how Nietzsche’s ethics meets these stringent conditions, but evolutionary ethics does not. My more general thesis is that naturalism and intuitionism in (...) ethics need not be mutually incompatible. (shrink)

In this article (1) I extract from Brentano’s works (three) formal arguments against “genealogical explanations” of ethical claims. Such explanation can also be designated as “naturalism” (not his appellation); (2) I counter these arguments, by showing how genealogical explanations of even apodictic moral claims are logically possible (albeit only if certain unlikely, stringent conditions are met); (3) I show how Nietzsche’s ethics meets these stringent conditions, but evolutionary ethics does not. My more general thesis is that naturalism and intuitionism in (...) ethics need not be mutually incompatible. (shrink)

In recent years, a proliferation of books about empathy, cooperation and pro-social behaviours has significantly influenced the discourse of the life-sciences and reversed consolidated views of nature as a place only for competition and aggression. In this article I describe the recent contribution of three disciplines – moral psychology, primatology and the neuroscience of morality – to the present transformation of biology and evolution into direct sources of moral phenomena, a process here named the ‘moralization of biology’. I conclude by (...) addressing the ambivalent status of this constellation of authors, for whom today ‘morality comes naturally’: I explore both the attractiveness of their message, and the problematic epistemological assumptions of their research programmes in the light of new discoveries in developmental and molecular biology. (shrink)

In recent years, a proliferation of books about empathy, cooperation and pro-social behaviours (Brooks, 2011a) has significantly influenced the discourse of the life-sciences and reversed consolidated views of nature as a place only for competition and aggression. In this article I describe the recent contribution of three disciplines – moral psychology (Jonathan Haidt), primatology (Frans de Waal) and the neuroscience of morality – to the present transformation of biology and evolution into direct sources of moral phenomena, a process here named (...) the ‘moralization of biology’. I conclude by addressing the ambivalent status of this constellation of authors, for whom today ‘morality comes naturally’: I explore both the attractiveness of their message, and the problematic epistemological assumptions of their research programmes in the light of new discoveries in developmental and molecular biology. (shrink)

This article is a defense of Michael Ruse's sociobiological account of the origins and nature of morality. In the piece, the author provides a summary explanation of Ruse's views and arguments. Then he goes on to explain and critically discuss a variety of objections that have been made against sociobiological accounts of morality. He argues that the criticisms that have been made often work against less sophisticated sociobiological theories but that Ruse's theory is immune to the criticisms. The author responds (...) to the arguments of the following critics of sociobiology: Kitcher, Flew, Flanagan, Nagel, Miles, Singer, and Jacquette. Key Words: Michael Ruse • E. O. Wilson • sociobiology • altruism • ethical naturalism. (shrink)

I offer a critical analysis of a view that has become a dominant aspect of recent thought on the relationship between evolution and morality, and propose an alternative. An ingredient in Michael Ruse's 'error theory' (Ruse 1995) is that belief in moral (prescriptive, universal, and nonsubjective) guidelines arose in humans because such belief results in the performance of adaptive cooperative behaviors. This statement relies on two particular connections: between ostensible and intentional types of altruism, and between intentional altruism and morality. (...) The latter connection is problematic because it makes morality redundant, its role having already been fulfilled by the psychological dispositions that constitute intentional altruism. Both behavioral ecology and moral psychology support this criticism, and neither human behavioral flexibility nor the self-regard / other-regard distinction can provide a defense of the error theory. I conclude that morality did not evolve to curb rampant selfishness; instead, the evolutionarily recent 'universal law' aspect of morality may function to update behavioral strategies which were adaptive in the paleolithic environment of our ancestors (to which our psychological dispositions are best adapted), by means of norms more appropriate to our novel social environment. (shrink)

Most contemporary philosophers of mind claim to be in search of a 'naturalistic' theory. However, when we look more closely, we find that there are a number of different and even conflicting ideas of what would count as a 'naturalization' of the mind. This article attempts to show what various naturalistic philosophies of mind have in common, and also how they differ from one another. Additionally, it explores the differences between naturalistic philosophies of mind and naturalisms found in ethics, epistemology, (...) and philosophy of science. Section 1 introduces a distinction between two types of project that have been styled 'naturalistic', which I call philosophical naturalism and empirical naturalism . Sections 2 to 6 canvass different strands of philosophical naturalism concerning the mind, followed by a much briefer discussion of attempts to provide empirical naturalizations of the mind in Section 7 . Section 8 concludes the essay with a consideration of the relations between philosophical and empirical naturalism in philosophy of mind, arguing that at least some types of philosophical naturalism are incompatible with empirical naturalism. (shrink)

Evolutionary moral realism is the view that there are moral values with roots in evolution that are both specifically moral and exist independently of human belief systems. In beginning to sketch the outlines of such a view, we examine moral goods like fairness and empathetic caring as valuable and real aspects of the environments of species that are intelligent and social, or at least developing along an evolutionary trajectory that could lead to a level of intelligence that would enable individual (...) members of the species to recognize and respond to such things as the moral goods they in fact are. We suggest that what is most morally interesting and important from a biological perspective is the existence and development of such trajectories, rather than the position of one particular species, such as our own, on one particular trajectory. (shrink)

A familiar position regarding the evolution of ethics is that biology can explain the origin of morals but that in doing so it removes the possibility of their having objective justification. This position is set fourth in detail in the writings of Michael Ruse but it is also taken by many others, notably, Jeffrie Murphy, Andrew Oldenquist, and Allan Gibbard, I argue the contrary view that biology provides a justification of the existence of morals which is objective in the sense (...) of being independent of people's moral views and their particular desires and preferences. Ironically, my argument builds on the very premises which are supposed to undermine the objectivity of morals. But my argument stops short of claiming that biology can give us a basis for justifying some particular system of morals. Drawing on an analogy with social contract theory, I offer a general reason why this more ambitious project cannot be expected to succeed if the argument is pursued along the same lines. Finally, I give reasons why the possibility of objective justification for a particular morality cannot be ruled out in general on evolutionary grounds. (shrink)

Darwinian natural selection draws on Malthus’ harsh vision of human society to explain how organisms come to be adapted to their environments. Natural selection produces the appearance of teleology, but requires only efficient causal processes: undirected, heritable variation combined with effects of the variations on survival and reproduction. This paper draws a sharp distinction between the resulting form of backwards-directed teleology and the future-directed teleology we ascribe to intentional human activity. Rather than dismiss teleology as mere illusion, the paper concludes (...) with an account of how future-directed teleology came to be a justifiable part of how we understand ourselves. (shrink)

One reason for the widespread resistance to evolutionary accounts of the origins of humanity is the fear that they undermine morality: if morality is based on nothing more than evolved dispositions, it would be shown to be illusory, many people suspect. This view is shared by some philosophers who take their work on the evolutionary origins of morality to undermine moral realism. If they are right, we are faced with an unpalatable choice: to reject morality on scientific grounds, or to (...) reject our best- confirmed scientific explanation of our origins in order to save morality. Fortunately, as I show, we have no reason to accept the deflationary claims of some evolutionary ethicists: morality, as we ordinarily understand it, is fully compatible with evolution. (shrink)