This classic work by early-20th-century Jewish humanist and scholar Isaac Heinemann surveys the crucial phases of Jewish thought concerning correct conduct as codified in the commandments. Heinemann offers systematic insights into the intellectual, emotional, pedagogical, and pragmatic reasoning advanced by the major Jewish thinkers. This book, available in English for the first time, covers Jewish thinkers from the Bible, rabbis, and philosophers through the Middle Ages and the Renaissance, including Saadiah, Halevi, Maimonides, and many others. Heinemann follows the Biblical, rabbinic, medieval, and modern rationales offered for the commandments in the course of the history of Jewish thought. Isaac Heinemann (1876-1957) was one of the leading Jewish humanists and scholars of the early twentieth century. His career spanned the golden age of Jewish scholarship in central Europe and the rise of Jewish studies in modern Israel. He was a leading authority on Hellenistic and rabbinic...