ONE:On extending our survey still wider, we find that the existence of a thing everywhere depends on its unity.462 All bodies perish by dissolution, and dissolution means the loss of unity. Health, beauty, and virtue are merely so many different kinds of harmony and unison. Shall we then say that soul, as the great unifying power in Nature, is the One of which we are in search? Not so; for preceding investigations have taught us that soul is only an agent for transmitting ideas received from a higher power; and the psychic faculties themselves are held together by a unifying principle for which we have to account. Neither is the whole sum of existence the One, for its very name implies a plurality of parts. And the claims of the Nous to that distinction have been already disproved. In short, nothing that exists can be the One, for, as we have seen, unity is the cause of existence and must therefore precede it.
ONE:After much searching, we have not been able to find the originals of the two passages quoted by Sir A. Grant. We have, however, found others setting forth the doctrine of Natural Realism with a clearness which leaves nothing to be desired. Aristotle tells us that former naturalists were wrong when they said that there could be no black or white without vision, and no taste without tasting; that is, they were right about the actuality, and wrong about the possibility; for, as he explains, our sensations are produced by the action of external bodies on the appropriate organs, the activity being the same while the existence is different. A sonorous body produces a sound in our hearing; the sound perceived and the action of the body are identical, but not their existence; for, he adds, the hearer need not be always listening, nor the sonorous body sounding; and so with all the other senses.267If there be a class of persons who although not perfectly virtuous are on the road to virtue, it follows that there are moral actions which they are capable of performing. These the Stoics called intermediate or imperfect duties; and, in accordance with their intellectual view of conduct, they defined them as actions for which a probable reason might be given; apparently in contradistinction to those which were deduced from a single principle with the extreme rigour of scientific demonstration. Such intermediate duties would have for their appropriate object the ends which, without being absolutely good, were still relatively worth seeking, or the avoidance of what, without being an absolute evil, was allowed to be relatively objectionable. They stood midway between virtue and vice, just as the progressive characters stood between the wise and the foolish, and preferable objects between what was really good and what was really evil.
