Aristotle claims that in making an animal, nature acts like a “good housekeeper” who “is accustomed to throw out nothing from which it is possible to make something useful” (744b16–17). How does nature act when it “make[s] something useful” in these cases – and does it differ from other ways it acts? I defend two main claims. The first is that Meteor. 4.2’s distinction between two sorts of ‘concoction’ processes offers an underappreciated source of evidence for answering this question. My (...) second claim concerns the nature of those processes and the ends they realize. While they are both the ends of their respective types of concoction, they differ in that some essential (process-defining) features of the second end – but not the first – are supplied by what the capacities of the “underlying” patient (on which the agent acts) are for. The result is a distinction between two kinds of end-directed efficient causation. (shrink)

In De Anima 2.4, Aristotle claims that nutritive soul encompasses two distinct biological functions: nutrition and reproduction. We challenge a pervasive interpretation which posits ‘nutrients’ as the correlative object of the nutritive capacity. Instead, the shared object of nutrition and reproduction is that which is nourished and reproduced: the ensouled body, qua ensouled. Both functions aim at preserving this object, and thus at preserving the form, life, and being of the individual organism. In each case, we show how Aristotle’s detailed (...) biological analysis supports this ontological argument. (shrink)

Proposes an innovative rethinking of Aristotle’s work as a system that integrates his theology with his doctrine of reproduction and life. In this deep rethinking of Aristotle’s work, Abraham P. Bos argues that scholarship on Aristotle’s philosophy has erred since antiquity in denying the connection between his theology and his doctrine of reproduction and life in the earthly sphere. Beginning with an analysis of God’s role in the Aristotelian system, Bos explores how this relates to other elements of his philosophy, (...) especially to his theory of reproduction. The argument he develops is that in talking about the cosmos, Aristotle rejected Plato’s metaphor of artisanal production by a divine Demiurge in favor of a biotic metaphor based on the transmission of life in reproduction, in which pneuma—not breath as it is often interpreted but the life-bearing spirit in animals and plants—plays a key and sustaining role as the vital principle in all that lives. In making this case, he defends the authenticity of the treatises De Mundo and De Spiritu as Aristotle’s, and demonstrates Aristotle’s works as a unified system that sharply and comprehensively refutes Plato’s, and in particular replaces Plato’s doctrine of the soul with a theory in which the soul is clearly distinguished from the intellect. “Bos offers a fresh, interesting, and important perspective. His interpretation will be very controversial, but if he is right, the standard Anglo-American interpretation of Aristotle will have to change radically.” — Malcolm Wilson, author of Structure and Method in Aristotle’s Meteorologica: A More Disorderly Nature. (shrink)

Aristotle’s soul is a first principle (an ‘efficient cause’) of every vital change in an animal, in the way that a craft is a cause of its product’s coming-to-be. We argue that the soul’s causal efficacy cannot therefore be reduced to the formal constitution of vital phenomena, or to discrete interventions into independently constituted processes, but involves the exercise of vital powers. This reading does better justice to Aristotle’s conception of craft as a rational productive disposition; and it captures the (...) soul’s continuous causal role as that which brings about all forms of vital change and underwrites their unity. (shrink)