The essays in this volume, written by a mix of well-established and younger philosophers, bridge divides between historical and systematic approaches in philosophy as well as divides between analytical, continental, and American traditions. They offer new interpretations of Aristotle, Confucius, Aquinas, Buridan, Kant, Pierce, Husserl, and Wittgenstein, and they challenge received views on normativity, the value of set theory, the objectivity of category schemes, and other topics.<BR>This volume, the first to offer a comprehensive examination of the subject, challenges mainstream positions on category theory. It will be of particular interest to philosophers and others concerned with how the world is divided.