In this volume, noted philosopher Lenn E. Goodman shares the insights gained over a lifetime of pondering the meaning and purpose of Maimonides' celebrated Guide to the Perplexed. Written in the late twelfth century, Maimonides' Guide aims to help religiously committed readers who are alive to the challenges posed by reason and the natural sciences to biblical and rabbinic tradition. Keyed to the new translation and commentary by Lenn E. Goodman and Phillip I. Lieberman, this volume follows Maimonides' life and learning and delves into the text of the Guide, clearly explaining just what Maimonides means by identifying the Talmudic Ma'aseh Bereshit and Ma'aseh Merkavah with physics and metaphysics (to Maimonides, biblical cosmology and theology). Exploring Maimonides' treatments of revelation, religious practice and experience, law and ritual, the problem of evil, and the rational purposes of the commandments, this guide to the Guide explains the tactics Maimonides deployed to ensure that readers not get in over their heads when venturing into philosophical deep waters.