This volume covers comprehensive list of philosophy-related terms. It covers articles from an international array of scholars on every level of the field, addressing the professional, specialist, teacher and student. Also included are many terms and concepts like apathy, laughter, the meaning of life, terms from disciplines such as mathematics, physics, biology, artificial intelligence, and linguistics. The aim is to provide teachers, students and laymen interested in philosophy with clear, concise, and correct definitions and descriptions of the philosophical terms, throughout the range of philosophic thought. This work represents all branches as well as schools of ancient, medieval, and modern philosophy. This volume provide lively and accessible coverage of not only the Western philosophical tradition, but also important themes in Chinese, Indian, Islamic and Jewish philosophy.