“But how shall the existence of a thinking Being be admitted, which, bounded as it is, has however so prodigious an extension? What ideas can be formed of its capaciousness and its limits? How can it animate so many bodies physically separated one from the other, and forming so many individuals? Let us fathom, as far as in us lies, these depths of obscurity. “Since spiritual substances have no solidity, they are penetrable, and take up no room. From their penetrability it follows, that several spirits may exist in one and the same space, and that a body may also be in the same place. From their taking up no room it follows, that they have neither length, nor breadth, nor depth; that they have no extension properly so called. But still a spirit is a real Being, a substance: Though it takes up no room, it is necessarily some-where; and, though it has no extension properly so called, it has necessarily its bounds. So, in a metaphysical sense, all spiritual Beings may be said to be more or less extended, to contain, and to be contained: And then we may return to our companion of the spunge, penetrated by a drop of oil, impregnated with water, and immersed in the sea.” “On the other hand, by virtue of the laws of combination, the result of the unions necessarily differs from the substances that are united; and it does not appear, that the soul and the body should make an exception. When the spirit and matter are united, think not the spirit the same as before; it is, in some measure, materialized; think not the matter such as it was before; it is, in some measure, spiritualized. From this mixture results a new Being, different from pure spirit, though it retains its noblest virtue; different from brute matter, though it partakes of its qualities: It is a particular Being, forming an individual, and thinking apart; in fine, it is such a Being as you that are reading, such as I that am writing. Therefore, what perceives in us, is properly speaking, neither the universal spirit nor the rational soul, nor organized matter: but a compound of all three. Just as when a lion roars, it is not the universal soul, that is in a rage; it is the compound of that soul and the brain of the lion. Hence it comes, that each animal forms a separate thinking individual, though all the animals think only by virtue of one and the same spirit, the universal soul. Let us proceed without losing sight of the faint light which guides us thro’ these dark paths.