The new edition of this introductory text presents, in an accessible way, classical and contemporary readings on topics central to and representative of all major periods of the Western philosophical tradition. The book presents 55 readings (23 of which are new to the fourth edition) on seven topics: epistemology, philosophy of religion, metaphysics, personal identity and immortality, free will and determinism, ethics, and political and social philosophy. Pedagogical features make these readings accessible and interesting to beginning students. All the introductions and biographical sketches have been revised for the fourth edition, as have the study questions and glossary. The explanatory footnotes and the stylistic modernization of texts are new to the fourth edition.