In “A Study of Man, and the Way of Health,” first published twenty-one years ago, as a general outline for my classes of Medical Students, to enable them to grasp the real problem of life, and to emphasize the Study of Man, as basic in the Study of Medicine, the following epitome was placed in the Preface. “The cosmic form in which all things are created and in which all things exist is a Universal Duality. Involution and Evolution express the two-fold process of the One Law of Development, corresponding to the two planes of being, the Subjective and the Objective. Consciousness is the central Fact of Being