BEING AND ESSENCE IDENTICAL WITH UNITY.
2. (Aristotle[189]) suggests that in each of the individual beings which are one, being is identical with unity. Are not being and essence identical with unity, in every being and in every essence, in a manner such that on discovering essence, unity also is discovered? Is not being in itself unity in itself, so that if being be intelligence, unity also must be intelligence, as intelligence which, being essence in the highest degree, is also unity in the first degree, and which, imparting essence to other things, also imparts unity to them? What indeed could unity be, apart from essence and being? As "man," and "a man" are equivalent,[190] essence must be identical with unity; or, unity is the number of everything considered individually; and as one object joined to another is spoken of as two, so an object alone is referred to as one.
UNITY IS NOT A NUMBERING DEVICE, BUT IS IDENTICAL WITH EXISTENCE.
If number belongs to the class of beings, evidently the latter must include unity also; and we shall have to discover what kind of a being it is. If unity be no more than a numbering device invented by the soul, then unity would possess no real existence. But we have above observed that each object, on losing unity, loses existence also. We are therefore compelled to investigate whether essence and unity be identical either when considered in themselves, or in each individual object.
EVEN UNIVERSAL ESSENCE CONTAINS MANIFOLDNESS.
If the essence of each thing be manifoldness, and as unity cannot be manifoldness, unity must differ from essence. Now man, being both animal and rational, contains a manifoldness of elements of which unity is the bond. There is therefore a difference between man and unity; man is divisible, while unity is indivisible. Besides, universal Essence, containing all essences, is still more manifold. Therefore it differs from unity; though it does possess unity by participation. Essence possesses life and intelligence, for it cannot be considered lifeless; it must therefore be manifold. Besides, if essence be intelligence, it must in this respect also be manifold, and must be much more so if it contain forms; for the idea[191] is not genuinely one. Both as individual and general it is rather a number; it is one only as the world is one.
BESIDES, ABSOLUTE UNITY IS THE FIRST, WHICH INTELLIGENCE IS NOT.
Besides, Unity in itself is the first of all; but intelligence, forms and essence are not primary. Every form is manifold and composite, and consequently must be something posterior; for parts are prior to the composite they constitute. Nor is intelligence primary, as appears from the following considerations. For intelligence existence is necessarily thought and the best intelligence which does not contemplate exterior objects, must think what is above it; for, on turning towards itself, it turns towards its principle. On the one hand, if intelligence be both thinker and thought, it implies duality, and is not simple or unitary. On the other hand, if intelligence contemplate some object other than itself, this might be nothing more than some object better than itself, placed above it. Even if intelligence contemplate itself simultaneously with what is better than it, even so intelligence is only of secondary rank. We may indeed admit that the intelligence which has such a nature enjoys the presence of the Good, of the First, and that intelligence contemplates the First; but nevertheless at the same time intelligence is present to itself, and thinks itself as being all things. Containing such a diversity, intelligence is far from unity.