The Four Category Ontology

E. J. Lowe sets out and defends his theory of what there is. His four-category ontology is a metaphysical system that recognizes two fundamental categorial distinctions which cut across each other to generate four fundamental ontological categories. The distinctions are between the particular and the universal and between the substantial and the non-substantial. The four categories thus generated are substantial particulars, non-substantial particulars, substantial universals andnon-substantial universals. Non-substantial universals include properties and relations, conceived as universals. Non-substantial particulars include property-instances and relation-instances, otherwise known as non-relational and relational tropes or modes. Substantial particulars include propertiedindividuals, the paradigm examples of which are persisting, concrete objects. Substantial universals are otherwise known as substantial kinds and include as paradigm examples natural kinds of persisting objects.This ontology has a lengthy pedigree, many commentators attributing it to Aristotle on the basis of certain passages in his apparently early work, the Categories. At various times during the history of Western philosophy, it has been revived or rediscovered, but it has never found universal favour, perhaps on account of its apparent lack of parsimony as well as its commitment to universals. In pursuit of ontological economy, metaphysicians have generally preferred to recognize fewerthan four fundamental ontological categories. However, Occam's razor stipulates only that we should not multiply entities beyond necessity; Lowe argues that the four-category ontology has an explanatory power unrivalled by more parsimonious systems, and that this counts decisively in its favour. He shows thatit provides a powerful explanatory framework for a unified account of causation, dispositions, natural laws, natural necessity and many other related matters, such as the semantics of counterfactual conditionals and the character of the truthmaking relation. As such, it constitutes a thoroughgoing metaphysical foundation for natural science.

This volume is about ontological categories. The categories of an ontology are designed to classify all existents. They are crucial and characterize an ontology.

Generally, categories are understood to express the most general features of reality. Yet, since categories have this special status, obtaining a correct list of them is difficult. This question is addressed by examining how Thomas Aquinas establishes the list of categories through a technique of identifying diversity in how predicates are per se related to their subjects. A sophisticated critique by Duns Scotus of this position is also examined, a rejection which is fundamentally grounded in the idea that no real distinction can be made from a logical one. It is argued Aquinas's approach can be rehabilitated in that real distinctions are possible when specifically considering per se modes of predication. This discussion between Aquinas and Scotus bears fruit in a contemporary context insofar as it bears upon, strengthens, and seeks to correct E. J. Lowe's four-category ontology view regarding the identity and relation of the categories.

This volume collects fifteen original essays on E. J. Lowe’s work on metaphysics and ontology. The essays connect Lowe’s insights with contemporary issues in metaphysics. E. J. Lowe (1950–2014) was one of the most influential analytical philosophers of the twentieth and early twenty-first century. Drawing inspiration from Aristotle's thought, E. J. Lowe treated metaphysics as an autonomous discipline concerned with the fundamental structure of reality. The chapters in this volume reflect on his path-breaking work. They deal with a wide range of metaphysical issues including four-category ontology, the causal and non-causal aspects of agency, categorial fundamentality and non-fundamentality, the existence of relations, property dualism, powers and abilities, personal identity, predication, and topological ontology. Taken together, the chapters reflect the liveliness of contemporary debates in metaphysics and the enduring impact of Lowe’s thought on them. E. J. Lowe and Ontology will be of interest to researchers and advanced students working in metaphysics and philosophy of mind.

With the death of Edward Jonathan Lowe (1950-2014), the analytical philosophy lost one of the most influential thinkers of the last thirty-five years. His contributions include (but are not limited to) philosophy of mind, John Locke's philosophy and metaphysics. In particular, concerning metaphysical studies, the most innovative part of Lowe's philosophical perspective is the four-category ontology that, according to the author, provides an exhaustive inventory of what there is and a powerful explanatory framework for a metaphysical foundation of natural science. Accordingly, the purpose of this volume is to collect some new essays from distinguished authorities in the field, critics and collaborators of Lowe in order to present some fundamental issues triggered by his ontological proposal.

Aristotelian (or neo-Aristotelian) metaphysics is currently undergoing something of a renaissance. This volume brings together fourteen essays from leading philosophers who are sympathetic to this conception of metaphysics, which takes its cue from the idea that metaphysics is the first philosophy. The primary input from Aristotle is methodological, but many themes familiar from his metaphysics will be discussed, including ontological categories, the role and interpretation of the existential quantifier, essence, substance, natural kinds, powers, potential, and the development of life. The volume mounts a strong challenge to the type of ontological deflationism which has recently gained a strong foothold in analytic metaphysics. It will be a useful resource for scholars and advanced students who are interested in the foundations and development of philosophy.

Taking into account significant developments in the metaphysical thinking of E. J. Lowe over the past 20 years, More Kinds of Being:A Further Study of Individuation, Identity, and the Logic of Sortal Terms presents a thorough reworking and expansion of the 1989 edition of Kinds of Being. Brings many of the original ideas and arguments put forth in Kinds of Being thoroughly up to date in light of new developments Features a thorough reworking and expansion of the earlier work, rather than just a new edition Reflects the author's conversion to what he calls 'the four-category ontology,' a metaphysical system that takes its inspiration from Aristotle Provides a unified discussion of individuation and identity that should prove to be essential reading for philosophers working in metaphysics.

This book can be viewed as a summation of Roderick Chisholm's views on an enormous range of topics in metaphysics and epistemology.