"The preservation of the Jew was certainly not casual. He has endured through the power of a certain ideal, based on the recognition of a Higher Power in human affairs. Time after time in his history, moreover, he has been saved from disaster in a manner, which cannot be described excepting as 'providential.' The author has deliberately attempted to write this book in a secular spirit; he does not think that his readers can fail to see in it, on every page, a higher immanence"