Since its original publication in 1979, The Possibility of Naturalism has been one of the most influential works in contemporary philosophy of science and social science. It is a cornerstone of the critical realist position, which is now widely seen as offering a viable alternative to move positivism and postmodernism. This revised edition includes a new foreword.

Professional philosophers and advanced students working in metaphysics and the philosophy of science will find this book both provocative and stimulating.

A groundswell of recent work in philosophy has sought to revitalize the analysis of causation by appealing to "active principles" such as powers, dispositions, capacities, tendencies, and propensities. These principles are described in a realist and rather Aristotelian fashion, in stark contrast to the deflationary and linguistic accounts of such principles characteristic of Humean thought and empiricist thinking more generally. Natures, essences, powers, and de re necessity are back in the analysis of causation. I do not argue in this paper (...) for the plausibility of the revitalization project in general; instead, I explain how I think one aspect of it must be understood if the project is to be plausible. I suggest that those who are moved to resist Humean austerity and embrace a realism about things such as causal powers should take care in how they formulate this realism. Some Aristotelian notions, such as the concept of a causal power, may well be useful to modern studies of causation. Others, such as the notion that causal powers are determined by essences which comprise the natures of things, are outmoded in many sciences today. This paper focuses specifically on the notions of power and essence in the context of causation. Contra some of the most important recent proponents of the revitalization project, I contend that causal generalizations are not generally best understood as determined by the essential properties of natural kinds. How a member of a kind (natural or otherwise) behaves causally may be a function of its causal powers, but such powers need not constitute anything like the "essence" of a kind. -/- 1. Revitalizing causation with dispositional essences 2. Causal behaviour in kinds without essences 3. Causal powers and inessential distributions. (shrink)

What is the new essentialist asking us to accept? Not that there are natural kinds, nor that there are intrinsic causal powers. These things could be accepted without a commitment to essentialism. They are asking us to accept something akin to the Kripke‐Putnam position: a metaphysical theory about kind‐membership in virtue of essential properties. But Salmon has shown that there is no valid argument for the Kripke‐Putnam position: no valid inference that gets us from reference to essence. Why then should (...) we accept essentialism? A remaining reason is Ellis's argument by display: we should buy essentialism because of the benefits it will bring. But are these benefits real? The problem is that the putative benefits of essentialism – that the laws of nature are necessary, that the problem of induction is solved, and so on – look actually to be the assumptions of Ellis's theory. If that is the case, there is no real benefit to be gained from adopting the theory. The argument for essentialism is therefore underdetermined and it remains possible to accept natural kinds into one's ontology without accepting their corresponding essences. (shrink)

Brian Ellis advances a robust species of realism he calls Physical Realism. Physical Realism includes an ontology comprising three kinds of universal and three kinds of particular: a six‐category ontology. After comparing Physical Realism to a modest two‐category ontology inspired by Locke, I mention two apparent difficulties a proponent of a six‐category ontology might address.1.

In "The Philosophy of Nature," Brian Ellis provides a clear and forthright general summation of, and introduction to, the new essentialist position. Although the theory that the laws of nature are immanent in things, rather than imposed on them from without, is an ancient one, much recent work has been done to revive interest in essentialism and "The Philosophy of Nature" is a distinctive contribution to this lively current debate. Brian Ellis exposes the philosophical and scientific credentials of the prevailing (...) Humean metaphysic as less than compelling and makes the case for new essentialism as an alternative metaphysical perspective in lucid and unambiguous terms. This book develops this alternative metaphysic and considers the consequences for philosophy, and for some other areas of investigation, of working with such a metaphysic. Ellis argues that these consequences are profound and that a new essentialism provides a comprehensive new philosophy of nature for a modern scientific understanding of the world. (shrink)

Scientific Essentialism defends the view that the fundamental laws of nature depend on the essential properties of the things on which they are said to operate, and are therefore not independent of them. These laws are not imposed upon the world by God, the forces of nature or anything else, but rather are immanent in the world. Ellis argues that ours is a dynamic world consisting of more or less transient objects which are constantly interacting with each other, and whose (...) identities depend on their roles in these processes. Natural objects must behave as they do, because to do otherwise would be contrary to their natures. The laws of nature are, therefore, metaphysically necessary, and consequently, there are necessary connections between events. Brian Ellis calls for the rejection of the theory of Humean Supervenience and an implementation of a new kind of realism in philosophical analysis. (shrink)

Groff defends 'realism about causality' through close discussions of Kant, Hilary Putnam, Brian Ellis and Charles Taylor, among others. In so doing she affirms critical realism, but with several important qualifications. In particular, she rejects the theory of truth advanced by Roy Bhaskar. She also attempts to both clarify and correct earlier critical realist attempts to apply realism about causality to the social sciences. By connecting issues in metaphysics and philosophy of science to the problem of relativism, Groff bridges the (...) gap between the philosophical literature and broader debates surrounding socio-political theory and poststructuralist thought. This unique approach will make the book of interest to philosophers and socio-political theorists alike. (shrink)