Abstract

Donald J. Zeyl begins the historical section of the book by tracing divine causation throughout classical Greek philosophy. Some of the Pre-Socratics held to a single god as the source of rational order or change. These views suggested that the cosmos may be explained teleologically. Plato takes up that suggested promise in his Phaedo and finds it wanting. Instead, he looks to Forms as (formal) causes of natural processes. This direction of inquiry leads him to postulate, in the Republic, the Form of the Good as the “unhypothetical (causal) first principle.” In Plato’s later writings, most notably in the Timaeus, Plato presents a full-blown teleological account of both the universe at large and the varieties of living things that inhabit the earth. The agent that brings about the conformity of the world to the Forms is the divine Demiurge. Aristotle inherits from Plato the belief that processes in the natural world are to be understood teleologically. These processes are explained by the nature (or form) of the organism itself. Aristotle’s world has no beginning and thus has no place for an original efficient cause to get the world started. Aristotle’s “Unmoved Mover” plays no causal role in the processes of the natural world, all of which are exhaustively explained in terms of Aristotle’s well-known theory of the “four causes.” Nevertheless, the Unmoved Mover is a final cause. After Aristotle, only the Stoics offered an account of divine causal agency. As pantheists, the Stoics identified the world with a divine rational principle they named the Logos. All events, natural and social, are completely determined by Reason, so the Stoics were strict determinists, both in their natural philosophy and in their social and ethical thought.