THESE fifteen Lectures on the Philosophy of Life are intended to give, as far as possible, a full and clear exposition of the most interesting topics that can engage human attention. In the opening they treat of the soul, first of all as forming the center of consciousness, and, secondly, of its co-operation with mind or spirit in science, that is, the acquisition of a right knowledge of man and nature, and of their several relations to the Deity. These matters occupy five Lectures of the whole series. The next three treat of the laws of divine wisdom and providence, as discernible in outward nature, in the world of thought, and in the history of mankind. The last seven contain an attempt to trace the development of man’s mind or spirit, both within himself and in science and public life. Tracing its gradual expansion, as unfolded either by the legitimate pursuit of a restoration to original excellence, or by the struggle with the opposing spirit of the times, they follow the human race through its progressive gradations, up to the closing term of perfection.