Abstract

This book develops an account of what substance is in terms of the notion of independence. As the authors note, there is a tradition of defining substance as independent that begins with Aristotle. But what notion of independence can provide an adequate definition of substance? The authors find traditional attempts to define independence, including Aristotle’s, inadequate on a number of grounds, and they propose an alternative account. As a preface to this undertaking, the authors consider and reject a number of standard objections to their project, and as an afterword, they argue that the notion of spiritual substance is as intelligible as the notion of material substance.