Lewis's 1952 Mere Christianity-originally printed in pamphlet form during World War II-documents a complex journey from atheism to faith. Lewis's fresh, lively, and often humorous presentation of Christian doctrine helped to make him arguably the greatest defender of Christianity of the 20th century.

Written by the great medieval Jewish philosopher Maimonides, The Guide of the Perplexed attempts to explain the perplexities of biblical language-and apparent inconsistencies in the text-in the light of philosophy and scientific reason. Composed as a letter to a student, The Guide aims to harmonize Aristotelian principles with the Hebrew Bible and argues that God must be understood as both unified and incorporeal. Engaging both contemporary and ancient scholars, Maimonides fluidly moves from cosmology to the problem of evil to the end goal of human happiness. His intellectual breadth...