""This volume contains the substance of the lectures which were delivered on the Nathaniel William Taylor foundation at the Spring conference of alumni of Yale Divinity School and ministers of Connecticut at New Haven in April, 1912. After they had been delivered, it seemed best to profit by the comments of those who heard them, and to gain the advantage of criticisms on the part of two or three friends who were good enough to read the manuscript. As a result, some minor changes have been made so as to avoid misinterpretation in one or two points; but the substance of the discussion remains practically unchanged. The final lecture of the course, which was too long to be read in its entirety, has been divided and slightly expanded in order to give space for a more detailed exposition."" -- From the Preface