In this seminal work, pioneering theologian Ernst Troeltsch raises the question, how can we pass beyond the diversity with which history presents us to norms for our faith and for our judgments about life? He trenchantly probes the issue of how one religion--when viewed historically in the context of other world religions--can be universally and absolutely true. Though many others since have explored the issue of historical relativism and religious truth, few have done so with Troeltsch\'s determination and incisiveness, and for this he has made a lasting contribution to Christian theology and the philosophy of religion. The questions Troeltsch poses in this book remain utterly significant for the thoughtful Christian today. This reissue of a well-known classic includes a foreword by theological titan James Luther Adams.