A complete translation of Aristotle's classic work De Anima supplemented with well-chosen notes and a comprehensive introduction. Also commonly translated as On the Soul, this work is a seminal work from the roots of Classical thinking on the nature of life and the lifeforce. Focus Philosophical Library translations are close to and are non-interpretative of the original text, with the notes and a glossary intending to provide the reader with some sense of the terms and the concepts as they were understood by Aristotle's immediate audience.