Naturalism is the label for the thesis that the tools we should use in answering philosophical problems are the methods and findings of the mature sciences—from physics across to biology and increasingly neuroscience. It enables us to rule out answers to philosophical questions that are incompatible with scientific findings. It enables us to rule out epistemological pluralism—that the house of knowledge has many mansions, as well as skepticism about the reach of science. It bids us doubt that there are facts (...) about reality that science cannot grasp. It gives us confidence to assert that by now in the development of science, absence of evidence is prima facie good grounds for evidence of absence: this goes for God, and a great deal else. (shrink)

Biologists and historians often present natural history and molecular biology as distinct, perhaps conflicting, fields in biological research. Such accounts, although supported by abundant evidence, overlook important areas of overlap between these areas. Focusing upon examples drawn particularly from systematics and molecular evolution, I argue that naturalists and molecular biologists often share questions, methods, and forms of explanation. Acknowledging these interdisciplinary efforts provides a more balanced account of the development of biology during the post-World War II era.

This article reviews the transition between post-Fregean anti-naturalistic epistemology and contemporary naturalistic epistemologies. It traces the revival of naturalism to Quine’s critique of the "a priori", and Kuhn’s defense of historicism, and use the arguments of Quine and Kuhn to identify a position, "traditional naturalism", that combines naturalistic themes with the claim that epistemology is a normative enterprise. Pleas for more radical versions of naturalism are articulated, and briefly confronted.

Some naturalists feel an affinity with some religions, or with a particular religion. They may have previously belonged to it, and/or been raised in it, and/or be close to people who belong to it, and/or simply feel attracted to its practices, texts and traditions. This raises the question of whether and to what extent a naturalist can lead the life of a religious believer. The sparse literature on this topic focuses on religious fictionalism. I also frame the debate in (...) these terms. I ask what religious fictionalism might amount to, reject some possible versions of it and endorse a different one. I then examine the existing proposals, by Robin Le Poidevin, Peter Lipton, Andrew Eshleman and Howard Wettstein, and show that even on my version of religious fictionalism, much of what has been described by these authors is still possible. (shrink)

Huw Price’s subject naturalism has emerged as a leading pragmatist position within recent debates surrounding philosophical naturalism. Unlike orthodox views which tend to be guided by metaphysical questions about the “place” of, for instance, the mind, meaning, and morality within the natural world, subject naturalism focuses philosophical attention on language-users and the functions that certain concepts play within discursive practices. This paper considers two objections to subject naturalism and argues that they can be overcome by looking to the methodological insights (...) of philosophical genealogy. Although Price occasionally characterizes his project as a kind of genealogy, he offers little explanation of what such a methodological orientation is supposed to involve. I suggest that subject naturalists ought to remedy this theoretical lacuna by looking to the work of Bernard Williams. On the one hand, doing so can serve a diagnostic function: Williams’ conception of genealogy affords a perspective from which subject naturalism’s explanatory inadequacies are more clearly understood. On the other hand, Williams’ elaborated conception of genealogy represents a path by which the subject naturalist can overcome the shortcomings discussed in this paper. (shrink)

Do the facts of evolution generate an epistemic challenge to moral realism? Some think so, and many “evolutionary debunking arguments” have been discussed in the recent literature. But they are all murky right where it counts most: exactly which epistemic principle is meant to take us from evolutionary considerations to the skeptical conclusion? Here, I will identify several distinct species of evolutionary debunking argument in the literature, each one of which relies on a distinct epistemic principle. Drawing on recent work (...) in epistemology, I will show that most of these initially plausible principles are false, spoiling the arguments that rely on them. And we will see that each argument threatens only one popular view of moral psychology: a “Representationalist” view on which our moral judgments rely crucially on a mental intermediary—e.g. a sentiment, gut reaction, or affect-laden intuition—delivered by our evolved moral faculty. In the end, only one evolutionary debunking argument remains a menace: an “ Argument from Symmetry ” that I will introduce to the literature. But we will see that it should worry only all naturalists, pressuring them into a trilemma: give up moral realism, accept a rationalism that is incongruous with naturalism, or give up naturalism. Non-naturalists are free and clear. (shrink)

In this paper, I show how realist moral naturalists can provide an intra-theoretic explanation of the epistemic possibility of wholesale moral error. This is a requirement on metaethical theories that has been recently defended by Akhlaghi (2021). After clarifying Akhlaghi’s argument and responding to Evers’s (2021) recent rebuttal, I argue that even under the assumption that moral facts are grounded in an appropriate subset of natural facts (N-facts), there is still a non-zero probability of wholesale moral error. This is (...) demonstrated by considering three types of epistemically possible scenarios: specifically, it could either be that N-facts do not actually exist, or that N-facts exist in a way that entails wholesale moral error, or that N-facts exist in a non-error theoretic way, but their existence is temporally restricted. (shrink)

Even among scholars who emphasize Nietzsche’s naturalism (“the naturalists”), what it actually involves is disputed. This article identifies the foundations of Nietzsche’s naturalism and then elaborates on these foundations through a critical analysis of the works of those naturalists who also identify them. Nietzsche is a methodological naturalist, who, epistemically, is a reliabilist, and while he acknowledges the innate limitations of our cognitive inheritance, which is reflected in his perspectivism, he sees no reason to conclude that we cannot (...) grasp the natural world truly. As to the primary issue in scientific explanation, causation, Nietzsche adopts a regularity theory as early as The Gay Science, and, on the basis of this theory, rejects determinism. One consequence of this analysis is that Nietzsche’s naturalism is not as restrictive as the naturalists tend to portray it, and this opens up new possibilities for interpreting many of his other commitments. (shrink)

Experimental taxonomy was a diverse area of research, and botanists who helped develop it were motivated by a variety of concerns. While experimental taxonomy was never totally a taxonomic enterprise, improvement in classification was certainly one major motivation behind the research. Hall's and Clements' belief that experimental methods added more objectivity to classification was almost universally accepted by experimental taxonomists. Such methods did add a new dimension to taxonomy — a dimension that field and herbarium studies, however rigorous, could not (...) duplicate. Nonetheless, experimental techniques were never completely divorced from traditional taxonomic methods. In practice, all experimental taxonomists employed a combination of descriptive and experimental methods. Most researchers freely acknowledged a debt to traditional taxonomy. Furthermore, the greater rigor of twentieth-century taxonomy was not due entirely to experimentalism. Both the experimental and descriptive aspects of taxonomy were improved by the increased use of quantitative methods, particularly statistics.52From the beginning, a number of experimental taxonomists were interested primarily in classification. But many approached their research from fields other than taxonomy. These botanists were concerned primarily with ecological and genetic problems rather than with classification. There is little indication that they drew a sharp distinction: for example, taxonomic and cytogenetic conclusions were interwoven in Babcock and Stebbins' 1938 study of Crepis 53 (this was even more true of Babcock's final mongraph on the genus, published in 1947). Similarly, the extensive series of monographs, “Experimental Studies on the Nature of Species,” initiated by the Carnegie Institution group in 1940 combined ecological, cytogenetic, and taxonomic conclusions. Indeed, the significance of the major projects completed by experimental taxonomists was largely due to the fact that they were comprehensive studies rather than strictly taxonomic or cytogenetic.In a general sense, the primary motivation behind much of experimental taxonomy was evolutionary. Beginning in the second decade of the century Hall and Clements exhorted taxonomists to take an explicitly evolutionary perspective on research. Hall undoubtedly spoke for the majority of experimental taxonomists when he stated, “If there be anything at all to organic evolution, then taxonomy is dealing with the products of evolution and it is this that gives to taxonomy both its highest mission and its greatest responsibility.”54Aside from a common interest in evolution, however, the theoretical orientations of experimental taxonomists were varied. This diversity is strikingly illustrated by the evolutionary views of members of the Carnegie Institution research group. Experimental taxonomy was initiated by Clements as one aspect of his Lamarckian study of adaptation and speciation. In contrast, Hall's research was inspired by a broad concern for evolutionary problems. Hall rarely referred to specific evolutionary mechanisms; rather, he applied a general conception of evolutionary processes to deduce phylogenetic relationships. His later associates at the Carnegie Institution explicitly dissociated themselves from Clements' theoretical framework. The neo-Darwinian interpretations of adaptation and speciation presented by Clausen, Keck, and Hiesey could hardly have been more different than those of Clements. However, this major shift in theoretical orientation should not obscure significant similarities between the research of Clements and later Carnegie workers. In terms of research problems and methodology, the first volume of “Experimental Studies on the Nature of Species” was an extension of the Clementsian research program. Clausen, Keck, and Hiesey's monograph was the mature discussion of transplant experimentation that Clements had very tentatively initiated during the first decades of the twentieth century. The bond that linked the members of the Carnegie Institution research group to experimental taxonomists in general was one of shared methodology rather than common theoretical orientation. While Clements' evolutionary views were eventually repudiated, his enthusiasm for innovative experimental methods was shared by later workers.The development of experimental taxonomy faced significant problems. During the period 1920–1950 this area of botanical research remained a hybrid discipline. The aims and scope of experimental taxonomy were never articulated in a completely unified manner. Consequently, even among experimental taxonomists, there were disagreements over the relation of their research to other botanical endeavors. Even though experimental taxonomy had close ties with general taxonomy, a number of experimental taxonomists questioned the “taxonomic” nature of their research55. Even to the extent that this hybrid discipline could be identified as a branch of taxonomy, problems arose. Taxonomists, as we have seen, were justifiably skeptical of what appeared to be a rapid influx of untested methods and ideas. Experimental taxonomists were not merely incorporating well-accepted methods from ecology and cytogenetics; during the period 1920–1950 the fields from which experimental taxonomists borrowed were themselves undergoing major theoretical and methodological changes. Despite problems and conflicts, experimental taxonomists did contribute improvements to classification. Furthermore, they made significant contributions to plant ecology and evolutionary genetics.The development of experimental taxonomy indicates that twentieth-century botanists were not necessarily isolated in naturalist and experimentalist camps. The joint session of taxonomists, cytologists, and geneticists at the 1926 International Congress of Plant Sciences indicates communication among specialists fairly early in the century. The papers and commentaries presented during this session do not reveal the hostility and intolerance that supposedly characterized encounters between experimentalists and naturalists. Nor do they suggest incompatible conceptual worlds separating geneticists and taxonomists.Discussions between taxonomists and other specialists were not limited to a single international congress. Particularly during the 1930s discussions among specialists appear to have been fairly widespread. Groups such as the Biosystematists and the Society for the Study of Systematics in Relation to General Biology served as forums for discussion among biologists from a variety of disciplines. The naturalist-experimentalist dichotomy tends to obscure the broad research interests of a number of prominent twentieth-century botanists. Most of the experimental taxonomists cannot be characterized adequately as either naturalists or experimentalists. Traditionally trained taxonomists such as Hall, Keck, and Turrill throughout their careers participated in both experimental and herbarium research. And a number of specialists in fields other than taxonomy took an active interest in taxonomic problems, not necessarily limited to experimental aspects. For example, Anderson suggested a number of innovations to make herbarium collections more amenable to statistical analysis.This historical study of experimental taxonomy indicates a different relationship between experimentalism and taxonomy than that portrayed by the naturalist-versus-experimentalist dichotomy. F. E. Clements originated experimental taxonomy as a revolt against descriptive botany. In retrospect, this revolution was not vigorously waged and was not successfully completed. Experimental taxonomy was never an entirely experimental approach to botanical research. Even the most ardent advocates of experimentalism relied heavily on methods inherited from traditional taxonomy. Moderate exponents of experimental taxonomy stressed the compatibility of experimental methods, field observation, and herbarium techniques. Attempts to fuse cytogenetics, ecology, and taxonomy during the period 1920–1950 resulted in an impressive body of research. However, this fusion constituted neither a repudiation of descriptive botany nor a complete revision of taxonomic theory of practice. (shrink)

Abstract The views of eleven writers who develop a naturalized spirituality, from Baruch Spinoza and George Santayana to Sam Harris, André Comte-Sponville, Ursula Goodenough, and Sharon Welch and others are presented. Then the writer's own theory is developed. This is a pluralistic notion of sacredness, an adjective referring to unmanipulable events of overriding importance. The difficulties in using traditional religious words, such as God and spiritual are addressed.

It seems reasonable to seek a definition of naturalism, yet an accurate general definition proves to be elusive. After considering proposals from Quine, Nagel, and Chalmers, I propose that naturalism as understood by the majority of contemporary naturalists is best defined by the conjunction of mind-body supervenience, an understanding of the physical as mechanistic, and the causal closure of the physical domain. I then argue that naturalism so defined is in principle unable to account for the existence of rationality; (...) it follows that naturalism must be rejected. (shrink)

In our 2021 paper, “Houston: Do we have a problem?”, we argued that contra popular belief, there is no conflict between existence of ETI and theism in general and Christian theism in particular. In this paper we argue further that the existence of ETI, especially ETI who are sophisticated enough to travel space, is evidence for theism. That is, ETI confirms the hypothesis that God exists over its naturalist competitor.

The two great modern naturalists, Linnaeus and Darwin, expressed their intuition about how best to visualize patterns of affinities, that is, morphological similarities and divergences between taxa. Linnaeus suggested that “all plants show affinities on all sides, like a territory on a geographical map,” while Darwin thought that it was virtually impossible to understand the affinities between living and extinct species without a genealogical tree. Genealogical trees follow the diachronic, evolving logic of a timeline, whereas maps depict a synchronous (...) pattern of extant taxa. Although the two seem unrelated, various naturalists made attempts to combine them. Surprisingly, these resulted in three-dimensional images that, in order to be observed, had to be projected on paper. The naturalists Max Fürbringer and Richard Bowdler Sharpe were aware of this fact, but even Darwin himself twice combined the basic intuitions underlying the two modes of representation to produce three-dimensional images. This article is a brief history of the efforts to merge genealogical trees and map-like cross sections of affinities into one three-dimensional image. (shrink)

Early Renaissance naturalists worked to identify the plans described in ancient sources. But during the middle decades of the sixteenth century, naturalists instead began to describe and name plans unknown to the ancients. They also divided nature much more finely, distinguishing species that their predecessors had lumped together. As a result, they created an information overload. Dictionaries of synonyms and local flora were invented in the early seventeenth century as partial solutions to this problem of information overload.

This paper explores how João de Andrade Corvo and José Vicente Barbosa du Bocage, two nineteenth-century Portuguese naturalists, were able to reach prominent political positions in their country by means of their work in, respectively, botany and agriculture, and zoology. The authority they derived from their scientific activities and the knowledge they acquired in the process, favored by their proximity to particular political quarters, elevated them to important governmental offices, in the context of which they implemented policies that reinforced (...) Portugal’s identity as an imperial nation. The colonial policies and agreements signed by Corvo and Bocage aimed at securing Portuguese colonial territories, which, aside from their economic relevance, constituted a symbol of power that reinforced the sovereignty of a small nation in a Europe dominated by the rule of increasingly vaster and stronger states. In spite of their different scientific careers and personal interests, both naturalists played key roles in Portuguese foreign affairs and colonial negotiations of the late nineteenth century, especially during the Scramble for Africa. (shrink)

Non-naturalism is the view that normative properties are response-independent, irreducible to natural properties, and causally inefficacious. An underexplored question for non-naturalism concerns the metasemantics of normative terms. Ideally, the non-naturalist could remain ecumenical, but it appears they cannot. Call this challenge the metasemantic challenge. This chapter suggests that non-naturalists endorse an epistemic account of reference determination of the sort recently defended by Imogen Dickie, with some modifications. An important implication of this account is that, if correct, a fully fleshed (...) out moral epistemology will simultaneously rebut metasemantic objections to non-naturalism. Thus, both the metasemantic and the more widely discussed epistemological challenges in effect amount to one. Before setting out the positive view, the chapter considers why all of the traditional metasemantic theories cause trouble for the non-naturalist. This includes discussions of teleosemantics, conceptual role semantics, as well as Schroeter and Schroeter’s “connectedness” model. (shrink)

Zygon®, Volume 56, Issue 4, Page 1027-1038, December 2021.

Ethical realists hold that our ethical concepts, thoughts, and claims are in the business of representing ethical reality, by representing evaluative or normative properties and facts as aspects of reality, and that such representations are at least sometimes accurate. Non-naturalist realists add the further claim that ethical properties and facts are ultimately non-natural, though they are nonetheless worldly. My aim is threefold: to elucidate the sort of representation involved in ethical evaluation on realist views; to clarify what exactly is represented (...) and how non-naturalism comes into the picture for non-naturalists; and to defend worldly non-naturalism against some objections. The first question addressed is how we should model evaluation on any realist view, which should in turn guide the identification of which properties and facts are credibly regarded as ‘evaluative’ ones. Then the question is: what role might non-natural properties and facts play, and how are they related to what is represented in ethical evaluation? Once that is clear, we will be in a position to answer certain objections to non-naturalist realism from Jackson, Gibbard, Bedke, and Dreier. I argue that the objections all mischaracterize the role played by non-natural properties and facts on plausible versions of non-naturalist realism. (shrink)

It is common in metaethics today to draw a distinction between “naturalist” and “non-naturalist” versions of moral realism, where the former view maintains that moral properties are natural properties, while the latter view maintains that they are non-natural properties instead. The nature of the disagreement here can be understood in different ways, but the most common way is to understand it as a metaphysical disagreement. In particular, the disagreement here is about the reducibility of moral properties, where the “naturalists” (...) maintain that moral properties are in some way reducible to the lower-level natural properties on which they supervene, while the “non-naturalists” maintain that moral properties are sui generis and robustly irreducible. In this paper I present a novel version of realist ethical naturalism—a view that I call Emergentist Ethical Naturalism—that reveals this common way of understanding the distinction between naturalism and non-naturalism to be flawed by combining a commitment to ethical naturalism with a commitment to the sui generis and robustly irreducible nature of moral properties that typically defines non-naturalism. Then, after presenting the theory and addressing a few worries that one might have about it, I show how it offers some novel, emergence-based responses to the various supervenience challenges that plague moral realism and thereby gives the ethical naturalist a robustly non-reductive option for dealing with these challenges. (shrink)

In this paper I argue against Analytic Normative Naturalism by suggesting that the view cannot capture the way that normative concepts figure in advice. To establish this conclusion, I identify several links between normative concepts and advice and argue that, if Analytic Normative Naturalism were true, these links would not obtain.

It is widely supposed that methodological naturalism, understood as a thesis about the methodology of science, is metaphysically neutral, and that this in turn guarantees the value-neutrality of science. In this paper we argue that methodological naturalism is underpinned by certain ontological and epistemological assumptions including evidentialism and the causal closure of the physical, adoption of which necessitates commitment to metaphysical naturalism.