FOURTH ENNEAD, BOOK SIX.
Of Sensation and Memory.
STOIC DOCTRINES OF SENSATIONS AND MEMORIES HANG TOGETHER.
If we deny that sensations are images impressed on the soul, similar to the impression of a seal, we shall also, for the sake of consistency, have to deny that memories are notions or sensations preserved in the soul by the permanence of the impression, inasmuch as, according to our opinion, the soul did not originally receive any impression. The two questions, therefore, hang together. Either we shall have to insist that sensation consists in an image impressed on the soul, and memory, in its preservation; or, if either one of these opinions be rejected, the other will have to be rejected also. However, since we regard both of them as false, we shall have to consider the true” operation of both sensation and memory; for we declare that sensation is as little the impression of an image as memory is its permanence. The true solution of the question, on the contrary, will be disclosed by an examination of the most penetrating sense, and then by induction transferring the same laws to the other senses.
A. OF SENSATION.
THE SENSE OF SIGHT DOES NOT POSSESS THE IMAGE SEEN WITHIN ITSELF.
In general the sensation of sight consists of perception of the visible object, and by sight we attain it in the place where the object is placed before our eyes, as if the perception operated in that very place, and as if the soul saw outside of herself. This occurs, I think, without any image being produced nor producing itself outside of the soul, without the soul receiving any impression similar to that imparted by the seal to the wax. Indeed, if the soul already in herself possessed the image of the visible object, the mere possession of this image (or type) would free her from the necessity of looking outside of herself. The calculation of the distance of the object’s location, and visibility proves that the soul does not within herself contain the image of the object. In this case, as the object would not be distant from her, the soul would not see it as located at a distance. Besides, from the image she would receive from within herself, the soul could not judge of the size of the object, or even determine whether it possessed any magnitude at all. For instance, taking as an example the sky, the image which the soul would develop of it would not be so great (as it is, when the soul is surprised at the sky’s extent). Besides, there is a further objection, which is the most important of all. If we perceive only the images of the objects we see, instead of seeing the objects themselves, we would see only their appearances or adumbrations. Then the realities would differ from the things that we see. The true observation that we cannot discern an object placed upon the pupil, though we can see it at some little distance, applies with greater cogency to the soul. If the image of the visible object be located within her, she will not see the object that yields her this image. We have to distinguish two things, the object seen, and the seeing subject; consequently, the subject that sees the visible object must be distinct from it, and see it as located elsewhere than within itself. The primary condition of the act of vision therefore is, not that the image of the object be located in the soul, but that it be located outside of the soul.
SENSATIONS ARE NOT EXPERIENCES. BUT RELATIVE ACTUALIZATIONS.
2. After denying that sensation consists of such an operation, it is our duty to point out the true state of affairs. Though it be objected that thus the soul would be considered as judging of things she does not possess, it is nevertheless plain that it is the characteristic of a power, not to experience or suffer, but to develop its force, to carry out the function to which it is destined. If the soul is to discern a visible or audible object the latter must consist of neither images nor experiences, but actualizations relative to the objects which naturally belong to the domain of these actualizations of the soul. Those who deny that any faculty can know its object without receiving some impulsion from it imply that the faculty suffers, without really cognizing the object before it; for this soul-faculty should dominate the object instead of being thereby dominated.
THIS IS TRUE NOT ONLY OF SIGHT BUT OF HEARING, TASTE AND SMELL.
The case of hearing is similar to that of sight. The impression is in the air; the sounds consist in a series of distinct vibrations, similar to letters traced by some person who is speaking. By virtue of her power and her being, the soul reads the characters traced in the air, when they present themselves to the faculty which is suitable to reception of them. As to taste and smell also, we must distinguish between the experience and the cognition of it; this latter cognition constitutest sensation, or a judgment of the experience, and differs; therefrom entirely.
COGNITION OF INTELLIGIBLE OBTECTS STILL LESS ADMITS OF AN IMPRESSION.
The cognition of intelligible things still less admits of an experience or impression; for the soul finds the intelligible things within herself, while it is outside of herself that she contemplates sense-objects. Consequently the soul’s notions of intelligible entities are actualizations of a nature superior to those of sense-objects, being the actualizations of the soul herself, that is, spontaneous actualizations. We shall however have to relegate to another place the question whether the soul sees herself as double, contemplating herself as another object, so to speak, and whether she sees intelligence as single in a manner such that both herself and intelligence seem but one.
B. OF MEMORY.
MEMORY ACTS THROUGH THE SYMPATHY OF THE SOUL’S HIGHEST SELF.
3. Treating of memory, we must begin by attributing to the soul a power which, though surprising, is perhaps really neither strange nor incredible. The soul, without receiving anything, nevertheless perceives the things she does not have. The (secret of this) is that by nature the soul is the reason of all things, the last reason of intelligible entities, and the first reason of sense-objects. Consequently the soul is in relation with both (spheres) ; by the intelligible things the soul is improved and vivified; but she is deceived by the resemblance which sense-objects bear to intelligible entities, and the soul descends here below as if drawn by her alluring charm. Because she occupies a position intermediary between intelligible entities and sense-objects, the soul occupies a position intermediary be-tween them. She is said to think intelligible entities wl)en, by applying herself to them, she recalls them. She cognizes them because, in a certain manner, she actually constitutes these entities; she cognizes them, not because she posits them within herself, but because she somehow possesses them, and has an intuition of them; because, obscurely constituting these things, she awakes, passing from obscurity to clearness, and from potentiality to actualization. For sense-objects she acts in the same way. By relating them to what she possesses within herself, she makes them luminous, and has an intuition of them, possessing as she does a potentiality suitable to (a perception of) them; and, so to speak, to begetting them. When the soul has applied the whole force of her attention to one of the objects that offer themselves to her, she, for a long while, thereby remains affected as if this object were present; and the more attentively she considers it, the longer she sees it. That is why children have a stronger memory; they do not quickly abandon an object, but lingeringly fix their gaze upon it; instead of allowing themselves to be distracted by a crowd of objects, they direct their attention exclusively to some one of them. On the contrary, those whose thought and faculties are absorbed by a variety of objects, do not rest with any one, and do no more than look them over.
MEMORY IS NOT AN IMAGE, BUT THE REAWAKENING OF A FACULTY.
If memory consisted in the préservation of images, their numerousness would not weaken memory. If memory kept these images stored within itself, it would have no need of reflection to recall them, nor could memory recall them suddenly after having forgotten them. Further, exercise does not weaken, but increases the energy and force of memory, just as the purpose of exercise of our feet or hands is only to put ourselves in a better condition more easily to accomplish certain things which are neither in our feet nor our hands, but to which these members become better adapted by habit.
Besides (if memory be only storage of images), why then does one not remember a thing when it has been heard but once or twice ? Why, when it has been heard often, is it long remembered, although it was not retained at first? This can surely not be because at first only some part of the images had been retained; for in that case those parts would be easily recalled. On the contrary, memory is produced suddenly as a result of the last hearing or reflexion. This clearly proves that, in the soul, we are only awaking the faculty of memory, only imparting to it new energy, either for all things in general, or for one in particular.
Again, memory does not bring back to us only the things about which we have reflected; (by association of ideas) memory suggests to us besides a multitude of other memories through its habit of using certain indices any one of which suffices easily to recall all the remainder; how could this fact be explained except by admitting that the faculty of memory had become strengthened?
Once more, the preservation of images in the soul ! would indicate weakness rather than strength, for the reception of several impressions would imply an easy yielding to all forms. Since every impression is an experience, memory would be measured by passive receptivity; which, of course, is the very contrary of the state of affairs. Never did any exercise whatever render the exercising being more fitted to suffering (or, receptive experience).
MEMORY NEEDS TRAINING AND EDUCATION.
It may be asked however, why, if memory be a “faculty” (a potentiality) or disposition, we do not immediately remember what we have learned, and why we need some time to recall it ? It is because we need to master our own faculty, and to apply it to its object. Not otherwise is it with our other faculties, which we have to fit to fulfil their functions, and though some of them may react promptly, others also may need time to gather their forces together. The same man does not always simultaneously exercise memory and judgment, because it is not the same faculty that is active in both cases. Thus there is a difference between the wrestler and the runner. Different dispositions react in each. Besides, nothing that we have said would militate against distinguishing between the man of strong and tenacious soul who would be inclined to read over what is recalled by his memory, while he who lets many things escape him would by his very weakness be disposed to experience and preserve passive affections. Again, memory must be a potentiality of the soul, inasmuch as the soul has no extension (and therefore could not be a storage-place for images which imply three dimensions).
Still another argument: in sensations, it is not the weak and impotent organ which perceives by itself; it is not, for instance, the eye that sees, but the active potentiality of the soul. That is why old people have both sensations and memories that are weaker. Both sensation and memory, therefore, imply some energy.
Last, as we have seen that sensation is not the impression of an image in the soul, memory could not be the storage-place of images it could not have received.
SOUL EVENTS OCCUR VERY DIFFERENTLY FROM WHAT IS SUPPOSED BY THE UNOBSERVANT OR UNREFLECTIVE.
In general all the processes of the soul occur in a manner very different from that conceived by unobservant men. Psychic phenomena occur very differently from sense-phenomena, the analogy of which may lead to very serious errors. Hence the above unobservant men imagine that sensations and memories resemble characters inscribed on tablets or sheets of paper. Whether they consider the soul material (as do the Stoics)”, or as immaterial (as do the Peripatetics), they certainly do not realize the absurd consequences which would result from the above hypothesis.