4.

That the soul is immaterial is a fact of which I avow myself to be fully persuaded, although men of slow understanding are hard to be convinced that it is so. To secure myself, however, from either unnecessarily causing to others or unreasonably bringing upon myself a controversy about an expression, let me say that, since the thing itself is beyond question, it is needless to contend about mere terms. If matter be used as a term denoting everything which in any form has a separate existence, whether it be called an essence, or a substance, or by another name, the soul is material. Again, if you choose to apply the epithet immaterial only to that nature which is supremely immutable and is everywhere present in its entirety, the soul is material, for it is not at all endowed with such qualities. But if matter be used to designate nothing but that which, whether at rest or in motion, has some length, breadth, and height, so that with a greater part of itself it occupies a greater part of space, and with a smaller part a smaller space, and is in every part of it less than the whole, then the soul is not material. For it pervades the whole body which it animates, not by a local distribution of parts, but by a certain vital influence, being at the same moment present in its entirety in all parts of the body, and not less in smaller parts and greater in larger parts, but here with more energy and there with less energy, it is in its entirety present both in the whole body and in every part of it. For even that which the mind perceives in only a part of the body is nevertheless not otherwise perceived than by the whole mind; for when any part of the living flesh is touched by a fine pointed instrument, although the place affected is not only not the whole body, but scarcely discernible in its surface, the contact does not escape the entire mind, and yet the contact is felt not over the whole body, but only at the one point where it takes place. How comes it, then, that what takes place in only a part of the body is immediately known to the whole mind, unless the whole mind is present at that part, and at the same time not deserting all the other parts of the body in order to be present in its entirety at this one? For all the other parts of the body in which no such contact takes place are still living by the soul being present with them. And if a similar contact takes place in the other parts, and the contact occur in both parts simultaneously, it would in both cases alike be known at the same moment, to the whole mind. Now this presence of the mind in all parts of the body at the same moment, so that in every part of the body the whole mind is at the same moment present, would be impossible if it were distributed over these parts in the same way as we see matter distributed in space, occupying less space with a smaller portion of itself, and greater space with a greater portion. If, therefore, mind is to be called material, it is not material in the same sense as earth, water, air, and ether are material. For all things composed of these elements are larger in larger places, or smaller in smaller places, and none of them is in its entirety present at any part of itself, but the dimensions of the material substances are according to the dimensions of the space occupied. Whence it is perceived that the soul, whether it be termed material or immaterial, has a certain nature of its own, created from a substance superior to the elements of this world,--a substance which cannot be truly conceived of by any representation of the material images perceived by the bodily senses, but which is apprehended by the understanding and discovered to our consciousness by its living energy. These things I am stating, not with the view of teaching you what you already know, but in order that I may declare explicitly what I hold as indisputably certain concerning the soul, lest any one should think, when I come to state the questions to which I desire answers, that I hold none of the doctrines which we have learned from science or from revelation concerning the soul.