Abstract

This is the first full-length commentary on De Motu Animalium since Albertus Magnus's thirteenth century treatise, De Principiis Motus Progresivi. Several paraphrases, and numerous editions, have appeared over the years, but a general belief, particularly in the nineteenth century, that MA was not an authentic work of Aristotle's, and doubt about the overall importance of this brief and cryptic work, had served to discourage more ambitious projects. Scholarly opinion changed in this century, and the authenticity of MA is now generally accepted. Nussbaum relates this history, establishes MA's authenticity beyond a doubt, and finds ample philosophical reason for bringing her--and our--attention to a full-length commentary. For MA, as she shows, is a treatise not only in biology, but also in cosmology, philosophy of science, philosophy of mind, theory of action, and practical reasoning.