Secondly, should we admit the human soul to be material, yet if it be an ultimate monad, an indivisible atom of mind, it is immortal still, defying all the forces of destruction. And that it actually is an uncompounded unit may be thus proved. Consciousness is simple, not collective. Hence the power of consciousness, the central soul, is an absolute integer. For a living perceptive whole cannot be made of dead imperceptive parts. If the soul were composite, each component part would be an individual, a distinguishable consciousness. Such not being the fact, the conclusion results that the soul is one, a simple substance.10 8 Astrue, Dissertation sur l'Immaterialite et l'Immortalite de l'Ame. Broughton, Defence of the Doctrine of the Human Soul as an Immaterial and Naturally Immortal Principle. Marstaller, Von der Unsterblichkeit der Menschlichen Seele. 9 Andrew Baxter, Inquiry into the Nature of the Soul. 10 Herbart, Lehrbuch zur Psychologie, sect. 150. Of course it is not liable to death, but is naturally eternal. Thirdly, the indestructibleness of the soul is a direct inference from its ontological characteristics. Reason, contemplating the elements of the soul, cannot but embrace the conviction of its perpetuity and its essential independence of the fleshly organization. Our life in its innermost substantive essence is best defined as a conscious force. Our present existence is the organic correlation of that personal force with the physical materials of the body, and with other forces. The cessation of that correlation at death by no means involves, so far as we can see, the destruction or the disindividualization of the primal personal force. It is a fact of striking significance, often noticed by psychologists, that we are unable to conceive ourselves as dead. The negation of itself is impossible to consciousness. The reason we have such a dread of death is that we conceive ourselves as still alive, only in the grave, or wandering through horrors and shut out from wonted pleasures. It belongs to material growths to ripen, loosen, decay; but what is there in sensation, reflection, memory, volition, to crumble in pieces and rot away? Why should the power of hope, and joy, and faith, change into inanity and oblivion? What crucible shall burn up the ultimate of force? What material processes shall ever disintegrate the simplicity of spirit? Earth and plant, muscle, nerve, and brain, belong to one sphere, and are subject to the temporal fates that rule there; but reason, imagination, love, will, belong to another, and, immortally fortressed there, laugh to scorn the fretful sieges of decay.