I have already shown what we have in mind when we say two men see the same material thing. We have a picture of the thing, and of the bodies of the two men in a certain relation to it; and we imagine a copy of the thing as in some way connected with each of these bodies, and due to its relation to the thing. When relations to a material object are in question all the bodies in a consciousness are on a par. We may directly perceive the one thing and two or more bodies holding similar relations to it. But it is not so in the case of selves. The one self that we find in each consciousness seems to be peculiarly related to one body to the exclusion of others. And as we have not, in the case of this self, the conditions which led us to mark the similar relations of two human bodies (our representatives of the men) to one material object, by saying two men see the same thing, we, of course, do not say that two men see the same self. The word same, in sense VI, we may regard, then, as inapplicable to the self as immediately known.[28] This appears to be due, however, not to the nature of this self in itself considered, but to its peculiar relation to the other things in a consciousness.
Moreover, since the other two selves, the self as group of "real" qualities and the self as noumenon, are to us, as it were, shadows cast by the self immediately known—assumed to exist only because this is known to exist, and thought of as "present" only because this is known to be present—since, I say, these two selves hold in our thought this peculiar relation of dependence upon the self in consciousness, it is to be expected that we never find any one speaking of two men as seeing the same "real" self as one might readily speak of two men as seeing the same "real" tree. One says he has evidence that two men see the same "real" tree, when he has or can have in consciousness an immediately perceived tree and two immediately perceived human bodies in a certain relation to it. If no one had ever had this experience in the sphere of the immediately known, we have no reason to think any one would ever have thought of applying the phrase in question to a tree mediately known. And as we do not have a similar experience touching the self in consciousness, it is only natural to find that no one applies the phrase to any self out of consciousness. When things differ their shadows ought to differ too. Sameness in sense VI we may regard, then, as not attributable to self in any of the three senses of the word.
7. That, finally, there seems no more reason why one should not call the self as immediately known the same with the self as "external" thing, or with the self as noumenon, than the not-self as similarly perceived the same with the not-self as similarly inferred. The supposed relationships are in the two cases exactly alike. Here we have sameness in sense VII.
Sec. 15. If we claim that by the self as immediately known we understand not a part but the whole of consciousness, we should seem, unless we in some way modify our statement, to obliterate the distinction between self and not-self. Still, taking the words simply, and assuming that we mean by self all that is immediately known, we do not find that this will necessitate any important difference in the discussion of its samenesses. Consciousness as a whole is certainly what it is, or the same with itself, at any instant: two elements in it belonging to different times, or two complexes of elements belonging to different times may be the same, as being alike; it may be regarded as having a life history, and may from this point of view be called the same at different times without regard to similarity; two simultaneous elements or complexes of elements in it may be called the same to mark the fact that they resemble each other, or it, as a whole, may for the same reason be called the same with another consciousness (imagined); it and its representative (for example, the memory-image of its former self), may be called the same; and we may use the word same to indicate its relation to its supposed "real" correlate in an extra-consciousness world, whether we make this "thing" or "noumenon."
It will be observed that in the preceding I have allowed the self, considered as the whole of consciousness, all the kinds of sameness upon my list except the sixth. There is, however, no objection, except that arising from oddity of expression, against allowing it this kind of sameness too. If we really mean by the self the whole of consciousness, then everything immediately perceived is a part of the self. If then, it is proper to say two men see the same tree, one may go on to say, if one choses, that two men see a part of the one self. Such an expression could, of course, be used only in speaking of the objective part of this self, the part which those who distinguish between ego and non-ego call the not-self. It is needless to say that no one ever thinks of talking in this way. I merely mention the point for the sake of completeness in my analysis.
Sec. 16. If by the self we do not understand a part or the whole of consciousness taken simply, but the one or the other of these regarded from some peculiar point of view, does it affect the question of the kinds of sameness we may attribute to it? It may be asserted, for example, that when we are thinking of the world of things immediately perceived as conditioned by its relation to a particular organism (also immediately perceived)—as duplicated by a pressure on the eyes, as annihilated by a blow on the head—we make these things mental, and properly include them under the head of self; whereas, when we abstract these same things in thought from the organism, and, so to speak, objectify them, we properly include them under the head of not-self. We are thus to regard the one thing as an element of the self or of the not-self, according to the light in which it is viewed. But it does not seem to me that if we take the word self in the sense just described, or in any analogous sense, we need alter the list of samenesses already given. We are still considering a part or the whole of consciousness, and the fact that we are viewing it in one light rather than another would not apparently influence in any way its kinds of sameness.
Sec. 17. This would certainly appear to be the case if we take the words part and whole of consciousness in their common acceptation, as denoting a portion or the totality of mental elements (sensations, feelings, volitions, ideas), in their various relations to each other. It remains, however, to consider a position, which, it may be claimed, is not covered by the foregoing classification of possible positions, when the words "part" and "whole" are thus understood. Suppose that one distinguishes in the Kantian fashion between the form and the matter of what appears in consciousness, and maintains that the formal element, the arrangement, or "unity" of consciousness is to be attributed to mind, or, if you please, is mind, and for "mind" I may here write "self," while the matter or content, the raw material to be elaborated and related, is to be distinguished from this as a thing apart. Can it be shown that the above given kinds of sameness have significance in regard to the self so understood? Whether we call this a part of consciousness or not will depend on our use of terms. It is not a part, as commonly understood, nor is it the whole of consciousness.
Now, it has seemed to me that those who have laid most emphasis upon this formal element in consciousness have been very vague in their treatment of it. On the part of many writers there is little evidence of even an attempt at scientific exactitude. And yet it does not appear that the subject admits of treatment only in this loose and unsatisfactory way. If we can discuss it at all, there seems no reason why, with increasing knowledge, we may not expect to discuss it with accuracy and precision.
If we consider this formal element of consciousness in a concrete instance, it may help us to classify our ideas concerning it. Let us imagine three points in such relations to each other that when each is connected with the other two by straight lines we have an equilateral triangle. The three points are, of course, what they are at any instant. And whatever a relation may be, if the mutual relations of these three points are capable of being considered apart from the points, as a distinct element in consciousness, there appears no reason why we should not assert with equal justice that these relations are what they are at any instant. When we take note of the points we take note of the relations, and we do not confound the one with the other.
And just as I may say that such a set of three points imagined or observed now is the same with another and a similar set imagined or observed at some former time, meaning by the word same to indicate similarity, and not sameness in the strict sense mentioned just above; so there appears no reason at all why I may not say that the mutual relations of the one set of points are the same with the mutual relations of the other, making here, too, the distinction between sameness in the former, stricter, sense, and sameness in this second sense of similarity. If what is contained in a consciousness at any one instant, is, ipso facto, to be distinguished from what is contained in it at any other instant, there seems equal reason for making this distinction in the material element and in the formal. It is quite true that men are not accustomed to carrying this distinction into the region of form. The whole history of the dispute as to universals is evidence of the way in which men have confounded the kinds of sameness; but I fancy that even those who would clearly recognize that red color imagined yesterday and red color imagined to-day are the same merely in being similar, or in standing in a relation of original and representative, would yet not think of distinguishing triangularity noticed yesterday from triangularity noticed to-day, and marking that they are not the same in the first and strictest sense of the word. And yet it would be hard to show why two indistinguishably similar color sensations, existing in consciousness at different times, are to be kept apart in thought and recognized as two sensations, while two occurrences of the consciousness of triangularity (I use the clumsy phrase to avoid any question-begging word), are not to be distinguished as separate in a similar way. To say that the formal element is not a thing, but an activity, does not alter the position. If an activity is enough of a thing to be talked about and distinguished from other things, we may surely recognize an activity in consciousness yesterday as numerically different from an activity in consciousness to-day.