The scope of this closing volume includes a sketch of an idealistic Theory of Human Knowledge, an outline of a Philosophy of Nature, a doctrine about the Self, a discussion of the origin and destiny of the Human Indi vidual, a summary consideration of the world as a Moral Order, a study of the Problem of Evil, and, finally, an estimate of all these views in the light of what seem to me to be the interests of Natural Religion. This is a large and manifold programme. It was required of me by my interpretation of my task as Gifford lecturer. I well know how inadequate the consideration of each topic has necessarily proved to be.