Aristotle's De Anima was the first systematic philosophical account of the soul and its faculties.Aristotle's De anima is the first systematic philosophical account of the soul, which serves to explain the functioning of all mortal living things. In his commentary, Ronald Polansky argues that the work is far more structured and systematic than previously supposed.Aristotle's De anima is the first systematic philosophical account of the soul, which serves to explain the functioning of all mortal living things. In his commentary, Ronald Polansky argues that the work is far more structured and systematic than previously supposed.Aristotle's De anima is the first systematic philosophical account of the soul, which serves to explain the functioning of all mortal living things. In his commentary, Ronald Polansky argues that the work is far more structured and systematic than previously supposed. He contends that Aristotle seeks a comprehensive understanding of the soul and its faculties.Introduction; 1. The De Anima and self-knowledge; 2. Study of soul in relation to physics; 3. The cognitive faculties and physics; 4. Aristotle's procedures and the quest for thoroughness; 5. Background assumptions for study of the soul; 6. The truth and interest of the De Anima; 7. The text of the De Anima; Book 1: 1. The nobility and difficulty of study of soul. Its connection with body; 2. The predecessors' use of soul to account for motion and perception; 3. Criticism of predecessors' way of accounting for motion; 4. Criticism of the harmonia view as an account of motion; 5. Criticism of predecessors' way of accounting for cognition; Book 2: 1. Definition of soul; 2. What is life?; 3. How powers of soul are distributed and united in the soul; 4. The nutritive faculty, its object and subfaculties; 5. Clarification of being affected, living as saving, and the first definition of sense; 6. The three sorts of sensible objects; 7. Vision, its medium, and object; 8. Hearing, sound, and voicel“Y