The production of this book was begun with the conviction that philosophy and life may be brought nearer, that practical interests put new demands upon philosophy; while the practical man may be greatly benefited by the study of idealistic first principles. Hence the point of view is midway between the world of exact thinking and the world of actual living. The interest is not primarily psychological; nor is it ethical or religious. Yet all of these interests play a part. The attempt to investigate the inner life in this practical spirit is no doubt subject to difficulties, and many...