MacKenna-Plotinus: Senso-percepção

Sense-Perception

It has been explained that seeing and all sense-perception can occur only through the medium of some bodily substance, since in the absence of body the soul is utterly absorbed in the Intellectual Sphere. Sense-perception being the gripping not of the Intellectual but of the sensible alone, the soul, if it is to form any relationship of knowledge, or of impression, with objects of sense, must be brought in some kind of contact with them by means of whatever may bridge the gap. Enneads  : IV V. 1

Now; if the soul has been so injected as to be assimilated into the body as the design of a statue is worked into the bronze, it will follow that, upon any dividing of the body, the soul is divided with it, and if any part of the body is cut away a fragment of soul must go with it. Since an Entelechy must be inseparable from the being of which it is the accomplished actuality, the withdrawal of the soul in sleep cannot occur; in fact sleep itself cannot occur. Moreover if the soul is an Entelechy, there is an end to the resistance offered by reason to the desires; the total [of body and Entelechy-Soul] must have one-uniform experience throughout, and be aware of no internal contradiction. Sense-perception might occur; but intellection would be impossible. The very upholders of the Entelechy are thus compelled to introduce another soul, the Intellect, to which they ascribe immortality. The reasoning soul, then, must be an Entelechy - if the word is to be used at all - in some other mode. Enneads: IV VII. 8

These problems at any rate all serve to show that, while in general it is necessary to look for differences by which to separate things from each other, to hunt for differences of the differences themselves is both futile and irrational. We cannot have substances of substances, quantities of quantities, qualities of qualities, differences of differences; differences must, where possible, be found outside the genus, in creative powers and the like: but where no such criteria are present, as in distinguishing dark-green from pale-green, both being regarded as derived from white and black, what expedient may be suggested? Sense-perception and intelligence may be trusted to indicate diversity but not to explain it: explanation is outside the province of sense-perception, whose function is merely to produce a variety of information; while, as for intelligence, it works exclusively with intuitions and never resorts to explanations to justify them; there is in the movements of intelligence a diversity which separates one object from another, making further differentiation unnecessary. Enneads: VI III. 18

But how account, at this, for its extension over all the heavens and all living beings? There is no such extension. Sense-perception, by insistence upon which we doubt, tells of Here and There; but reason certifies that the Here and There do not attach to that principle; the extended has participated in that kosmos of life which itself has no extension. Enneads: VI IV. 13