A foundational study of Aristotle. Eduard Zeller's translation in this second volume concentrates on Aristotle and the earlier Peripatetics, offering a lucid peripatetic school analysis that brings ancient Greek philosophy into striking clarity. With Aristotelian thought explained in plain, exacting prose, Zeller traces how the Peripatetic movement received, revised and transmitted ideas from Plato and earlier thinkers, situating the Greek philosophical schools within the intellectual currents of classical era philosophy that produced the origins of Western philosophy in 4th century BC Greece. Zeller's close readings illuminate the Peripatetics' methods, argumentative forms and doctrinal priorities across logic, metaphysics and ethics; the book maps the genealogy of ideas more than it supplies a simple chronology. The translation renders Zeller's German scholarship into contemporary English without flattening its precision, so complex argument remains readable for general readers while remaining dependable as an academic philosophy reference and as a philosophy students' resource. Equally at home in course reading and on the shelf of a classical philosophy collection, it speaks to casual readers, seminar students and collectors of Plato and Aristotle studies alike. Out of print for decades and now republished by Alpha Editions. Restored for today's and future generations. More than a reprint - a collector's item and a cultural treasure. Zeller's careful reconstruction of the early Peripatetics remains of enduring historical importance: he reconstructs fragmentary doctrines, clarifies contested terms and supplies the intellectual context that makes later Aristotelian developments intelligible. Readers approaching ancient Greek philosophy for the first time will gain a clear structural narrative; scholars will find a dependable companion for source-based research and comparative study across Greek schools. Designed as a thoughtful modern edition, the volume marries scholarly rigour with readability, making it an ideal resource for undergraduate and postgraduate courses, public reading and private study. As a comprehensive philosophy anthology, it gathers Zeller's scholarship into a form that belongs on both reading lists and collectors' shelves. For collectors and lovers of classic literature it represents a restored heritage title, preserved with curatorial care and presented with the dignity the subject demands.