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.

Aristotle's Nicomachean Ethics is the first and arguably most important treatise on ethics in Western philosophy. It remains to this day a compelling reflection on the best sort of human life and continues to inspire contemporary thought and debate. This Cambridge Companion includes twenty essays by leading scholars of Aristotle and ancient philosophy that cover the major issues of this foundational text. The essays in this volume shed light on Aristotle's rigorous and challenging thinking on questions such as: Can there be a practical science of ethics? What is happiness? Can we arrive at...