the thought which comes, with the processes which occur, and to mediate intelligibly between their two disparate natures,--then it is an illusory term. It is, in fact, with the word Soul as with the word Substance in general. To say that phenomena inhere in a Substance is at bottom only to record one's protest against the notion that the bare existence of the phenomena is the total truth. A phenomenon would not itself be, we insist, unless there were something _more_ than the phenomenon. To the more we give the provisional name of Substance.
So, in the present instance, we ought certainly to admit that there is more than the bare fact of coexistence of a passing thought with a passing brain-state. But we do not answer the question 'What is that more?' when we say that it is a 'Soul' which the brain-state affects.
This kind of more _explains_ nothing; and when we are once trying metaphysical explanations we are foolish not to go as far as we can.
For my own part I confess that the moment I become metaphysical and try to define the more, I find the notion of some sort of an _anima mundi_ thinking in all of us to be a more promising hypothesis, in spite of all its difficulties, than that of a lot of absolutely individual souls. Meanwhile, as _psychologists_, we need not be metaphysical at all. The phenomena are enough, the passing Thought itself is the only _verifiable_ thinker, and its empirical connection with the brain-process is the ultimate known law.
To the other arguments which would prove the need of a soul, we may also turn a deaf ear. The argument from free-will can convince only those who believe in free-will; and even they will have to admit that spontaneity is just as possible, to say the least, in a temporary spiritual agent like our 'Thought' as in a permanent one like the supposed Soul. The same is true of the argument from the kinds of things cognized. Even if the brain could not cognize universal, immaterials, or its 'Self,' still the 'Thought' which we have relied upon in our account _is_ not the brain, closely as it seems connected with it; and after all, if the brain could cognize at all, one does not well see why it might not cognize one sort of thing as well as another. The great difficulty is in seeing how a thing can cognize _anything_. This difficulty is not in the least removed by giving to the thing that cognizes the name of Soul. The Spiritualists do not deduce any of the properties of the mental life from otherwise known properties of the soul. They simply find various characters ready-made in the mental life, and these they clap into the Soul, saying, "Lo!
behold the source from whence they flow!" The merely verbal character of this 'explanation' is obvious. The Soul invoked, far from making the phenomena more intelligible, can only be made intelligible itself by borrowing their form,--it must be represented, if at all, as a transcendent stream of consciousness duplicating the one we know.
Altogether, the Soul is an outbirth of that sort of philosophizing whose great maxim, according to Dr. Hodgson, is: "Whatever you are _totally_ ignorant of, assert to be the explanation of everything else."
* * * * * Locke and Kant, whilst still believing in the soul, began the work of undermining the notion that we know anything about it. Most modern writers of the mitigated spiritualistic, or dualistic philosophy--the Scotch school, as it is often called among us--are forward to proclaim this ignorance, and to attend exclusively to the verifiable phenomena of self-consciousness, as we have laid them down. Dr. Wayland, for example, begins his Elements of Intellectual Philosophy with the phrase "Of the essence of Mind we know nothing," and goes on: "All that we are able to affirm of it is that it is _something_ which perceives, reflects, remembers, imagines, and wills; but what that something _is_ which exerts these energies we know not. It is only as we are conscious of the action of these energies that we are conscious of the existence of mind. It is only by the exertion of its own powers that the mind becomes cognizant of their existence. The cognizance of its powers, however, gives us no knowledge of that essence of which they are predicated. In these respects our knowledge of mind is precisely analogous to our knowledge of matter." This analogy of our two ignorances is a favorite remark in the Scotch school. It is but a step to lump them together into a single ignorance, that of the 'Unknowable' to which any one fond of superfluities in philosophy may accord the hospitality of his belief, if it so please him, but which any one else may as freely ignore and reject.
The Soul-theory is, then, a complete superfluity, so far as accounting for the actually verified facts of conscious experience goes. So far, no one can be compelled to subscribe to it for definite scientific reasons. The case would rest here, and the reader be left free to make his choice, were it not for other demands of a more practical kind.
The first of these is _Immortality_, for which the simplicity and substantiality of the Soul seem to offer a solid guarantee. A 'stream' of thought, for aught that we see to be contained in its essence, may come to a full stop at any moment; but a simple substance is incorruptible, and will, by its own inertia, persist in Being so long as the Creator does not by a direct miracle snuff it out.
Unquestionably this is the stronghold of the spiritualistic belief,--as indeed the popular touchstone for all philosophies is the question, "What is their bearing on a future life?"
The Soul, however, when closely scrutinized, guarantees no immortality of a sort _we care for_. The enjoyment of the atom-like simplicity of their substance _in sæcula sæculorum_ would not to most people seem a consummation devoutly to be wished. The substance must give rise to a stream of consciousness continuous with the present stream, in order to arouse our hope, but of this the mere persistence of the substance _per se_ offers no guarantee. Moreover, in the general advance of our moral ideas, there has come to be something ridiculous in the way our forefathers had of grounding their hopes of immortality on the simplicity of their substance. The demand for immortality is nowadays essentially teleological. We believe ourselves immortal because we believe ourselves _fit_ for immortality. A 'substance' ought surely to perish, we think, if not worthy to survive; and an insubstantial 'stream' to prolong itself, provided it be worthy, if the nature of Things is organized in the rational way in which we trust it is. Substance or no substance, soul or 'stream,' what Lotze says of immortality is about all that human wisdom can say: "We have no other principle for deciding it than this general idealistic belief: that every created thing will continue whose continuance belongs to the meaning of the world, and so long as it does so belong; whilst every one will pass away whose reality is justified only in a transitory phase of the world's course. That this principle admits of no further application in human hands need hardly be said. _We_ surely know not the merits which may give to one being a claim on eternity, nor the defects which would cut others off."[275] A second alleged necessity for a soul-substance is our forensic responsibility before God. Locke caused an uproar when he said that the unity of _consciousness_ made a man the same _person_, whether supported by the same _substance_ or no, and that God would not, in the great day, make a person answer for what he remembered nothing of.
It was supposed scandalous that our forgetfulness might thus deprive God of the chance of certain retributions, which otherwise would have enhanced his 'glory.' This is certainly a good speculative ground for retaining the Soul--at least for those who demand a plenitude of retribution. The mere stream of consciousness, with its lapses of memory, cannot possibly be as 'responsible' as a soul which _is_ at the judgment day all that it ever was. To modern readers, however, who are less insatiate for retribution than their grandfathers, this argument will hardly be as convincing as it seems once to have been.
* * * * * One great use of the Soul has always been to account for, and at the same time to guarantee, the closed individuality of each personal consciousness. The thoughts of one soul must unite into one self, it was supposed, and must be eternally insulated from those of every other soul. But we have already begun to see that, although unity is the rule of each man's consciousness, yet in some individuals, at least, thoughts may split away from the others and form separate selves. As for insulation, it would be rash, in view of the phenomena of thought-transference, mesmeric influence and spirit-control, which are being alleged nowadays on better authority than ever before, to be too sure about that point either. The definitively closed nature of our personal consciousness is probably an average statistical resultant of many conditions, but not an elementary force or fact; so that, if one wishes to preserve the Soul, the less he draws his arguments from _that_ quarter the better. So long as our self, on the whole, makes itself good and practically maintains itself as a closed individual, why, as Lotze says, is not that enough? And why is the _being_-an-individual in some inaccessible metaphysical way so much prouder an achievement?[276] My final conclusion, then, about the substantial Soul is that it explains nothing and guarantees nothing. Its successive thoughts are the only intelligible and verifiable things about it, and definitely to ascertain the correlations of these with brain-processes is as much as psychology can empirically do. From the metaphysical point of view, it is true that one may claim that the correlations have a rational ground; and if the word Soul could be taken to mean merely some such vague problematic ground, it would be unobjectionable. But the trouble is that it professes to give the ground in positive terms of a very dubiously credible sort. I therefore feel entirely free to discard the word Soul from the rest of this book. If I ever use it, it will be in the vaguest and most popular way. The reader who finds any comfort in the idea of the Soul, is, however, perfectly free to continue to believe in it; for our reasonings have not established the non-existence of the Soul; they have only proved its superfluity for scientific purposes.
The next theory of the pure Self to which we pass is Locke paved the way for it by the hypothesis he suggested of the same substance having two successive consciousnesses, or of the same consciousness being supported by more than one substance. He made his readers feel that the _important_ unity of the Self was its verifiable and felt unity, and that a metaphysical or absolute unity would be insignificant, so long as a _consciousness_ of diversity might be there.
Hume showed how great the consciousness of diversity actually was.
In the famous chapter on Personal Identity, in his Treatise on Human Nature, he writes as follows: "There are some philosophers who imagine we are every moment intimately conscious of what we call our SELF; that we feel its existence and its continuance in existence, and are certain, beyond the evidence of a demonstration, both of its perfect identity and simplicity...Unluckily all these positive assertions are contrary to that very experience which is pleaded for them, nor have we any idea of Self, after the manner it is here explained...It must be some one impression that gives rise to every real idea...If any impression gives rise to the idea of Self, that impression must continue invariably the same through the whole course of our lives, since self is supposed to exist after that manner. But there is no impression constant and invariable. Pain and pleasure, grief and joy, passions and sensations succeed each other, and never all exist at the same time...For my part, when I enter most intimately into what I call _myself_, I always stumble on some particular perception or other of heat or cold, light or shade, love or hatred, pain or pleasure.
I never can catch _myself_ at any time without a perception, and never can observe anything but the perception. When my perceptions are removed for any time, as by sound sleep, so long am I insensible of _myself_ and may truly be said not to exist. And were all my perceptions removed by death, and could I neither think, nor feel, nor see, nor love, nor hate after the dissolution of my body, I should be entirely annihilated, nor do I conceive what is farther requisite to make me a perfect non-entity. If anyone, upon serious and unprejudiced reflection, thinks he has a different notion of _himself_ I must confess I can reason no longer with him. All I can allow him is, that he may be in the right as well as I, and that we are essentially different in this particular. He may, perhaps, perceive something simple and continued which he calls _himself_; though I am certain there is no such principle in me.
"But setting aside some metaphysicians of this kind, I may venture to affirm of the rest of mankind that they are _nothing but a bundle or collection of different perceptions_, which succeed each other with an inconceivable rapidity, and are in a perpetual flux and movement.
Our eyes cannot turn in their sockets without varying our perceptions.
Our thought is still more variable than our sight; and all our other senses and faculties contribute to this change; nor is there any single power of the soul which remains unalterably the same, perhaps for one moment The mind is a kind of theatre, where several perceptions successively make their appearance; pass, repass, glide away and mingle in an infinite variety of postures and situations.
_There is properly no simplicity in it at one time, nor identity in different_; whatever natural propension we may have to imagine that simplicity and identity. The comparison of the theatre must not mislead us. They are the successive perceptions only, that constitute the mind; nor have we the most distant notion of the place where these scenes are represented, nor of the material of which it is composed."
But Hume, after doing this good piece of introspective work, proceeds to pour out the child with the bath, and to fly to as great an extreme as the substantialist philosophers. As they say the Self is nothing but Unity, unity abstract and absolute, so Hume says it is nothing but Diversity, diversity abstract and absolute; whereas in truth it is that mixture of unity and diversity which we ourselves have already found so easy to pick apart. We found among the objects of the stream certain feelings that hardly changed, that stood out warm and vivid in the past just as the present feeling does now; and we found the present feeling to be the centre of accretion to which, _de proche en proche_, these other feelings are, _by the judging Thought_, felt to cling.
Hume says nothing of the judging Thought; and he denies this thread of resemblance, this core of sameness running through the ingredients of the Self, to exist even as a phenomenal thing. To him there is no _tertium quid_ between pure unity and pure separateness. A succession of ideas "connected by a close relation affords to an accurate view as perfect a notion of diversity as if there was _no manner of relation" at all._ "All our distinct perceptions are distinct existences, and the mind never perceives any real connection among distinct existences. Did our perceptions either inhere in something simple or individual, or _did the mind perceive some real connection_ among them, there would be no difficulty in the case. For my part, I must plead the privilege of a sceptic and confess that this difficulty is too hard for my understanding, I pretend not, however, to pronounce it insuperable.
Others, perhaps,...may discover some hypothesis that will reconcile these contradictions."[277] Hume is at bottom as much of a metaphysician as Thomas Aquinas. No wonder he can discover no 'hypothesis.' The unity of the parts of the stream is just as 'real' a connection as their diversity is a real separation; both connection and separation are ways in which the past thoughts appear to the present Thought;--unlike each other in respect of date and certain qualities--this is the separation; alike in other qualities, and continuous in time--this is the connection. In demanding a more 'real' connection than this obvious and verifiable likeness and continuity, Hume seeks 'the world behind the looking glass,' and gives a striking example of that Absolutism which is the great disease of philosophic Thought.
* * * * * The chain of distinct existences into which Hume thus chopped up our 'stream' was adopted by all of his successors as a complete inventory of the facts. The associationist Philosophy was founded. Somehow, out of 'ideas,' each separate, each ignorant of its mates, but sticking together and calling each other up according to certain laws, all the higher forms of consciousness were to be explained, and among them the consciousness of our personal identity. The task was a hard one, in which what we called the psychologist's fallacy (p. 196 ff.) bore the brunt of the work. Two ideas, one of 'A,' succeeded by another of 'B,' were transmuted into a third idea of '_B after A_.' An idea from last year returning now was taken to be an idea _of last year_; two similar ideas stood for an _idea of similarity_, and the like; palpable confusions, in which certain facts _about_ the ideas, possible only to an outside knower of them, were put into the place of the ideas' own proper and limited deliverance and content. Out of such recurrences and resemblances in a series of discrete ideas and feelings a knowledge was somehow supposed to be engendered in each feeling that it _was_ recurrent and resembling, and that it helped to form a series to whose unity the name _I_ came to be joined. In the same way, substantially, Herbart,[278] in Germany, tried to show how a conflict of ideas would fuse into a _manner of representing itself_ for which _I_ was the consecrated name.[279] The defect of all these attempts is that the conclusion pretended to follow from certain premises is by no means rationally involved in the premises. A feeling of any kind, if it simply _returns_, ought to be nothing else than what it was at first. If memory of previous existence and all sorts of other cognitive functions are attributed to it when it returns, it is no longer the same, but a widely different feeling, and ought to be so described. _We_ have so described it with the greatest explicitness. We have said that feelings never do return. We have not pretended to _explain_ this; we have recorded it as an empirically ascertained law, analogous to certain laws of brain-physiology; and, seeking to define the way in which new feelings do differ from the old, we have found them to be _cognizant_ and _appropriative_ of the old, whereas the old were always cognizant and appropriative of something else. Once more, this account pretended to be nothing more than a complete description of the facts. It explained them no more than the associationist account explains them. But the latter both assumes to explain them and in the same breath falsifies them, and for each reason stands condemned.
It is but just to say that the associationist writers as a rule seem to have a lurking bad conscience about the Self; and that although they are explicit enough about what it is, namely, a train of feelings or thoughts, they are very shy about openly tackling the problem of how it comes to be aware of itself. Neither Bain nor Spencer, for example, directly touch this problem. As a rule, associationist writers keep talking about 'the mind' and about what 'we' do; and so, smuggling in surreptitiously what they ought avowedly to have postulated in the form of a present 'judging Thought,' they either trade upon their reader's lack of discernment or are undiscerning themselves.
Mr. D. G. Thompson is the only associationist writer I know who perfectly escapes this confusion, and _postulates_ openly what he needs. "All states of consciousness," he says, "imply and postulate a subject Ego, whose substance is unknown and unknowable, to which [why not say _by_ which?] states of consciousness are referred as attributes, but which in the process of reference becomes objectified and becomes itself an attribute of a subject Ego which lies still beyond, and which ever eludes cognition though ever postulated for cognition."[280] This is exactly our judging and remembering present 'Thought,' described in less simple terms.
After Mr. Thompson, M. Taine and the two Mills deserve credit for seeking to be as clear as they can. Taine tells us in the first volume of his 'Intelligence' what the Ego _is_,--a continuous web of conscious events no more really distinct from each other[281] than rhomboids, triangles, and squares marked with chalk on a plank are really distinct, for the plank itself is one. In the second volume he _says_ all these parts have a common character embedded in them, that of being _internal_ [this is our character of 'warmness,' otherwise named]. This character is abstracted and isolated by a mental fiction, and is what we are _conscious of_ as our self--'this stable _within_ is what each of us calls _I_ or me.' Obviously M. Taine forgets to tell us what this 'each of us' is, which suddenly starts up and performs the abstraction and 'calls' its product I or me. The character does not abstract _itself_. Taine means by 'each of us' merely the present 'judging Thought' with its memory and tendency to appropriate, but he does not name it distinctly enough, and lapses into the fiction that the entire series of thoughts, the entire 'plank,' is the reflecting psychologist.
James Mill, after defining Memory as a train of associated ideas beginning with that of my past self and ending with that of my present self, defines my Self as a train of ideas of which Memory declares the first to be continuously connected with the last. The successive associated ideas 'run, as it were, into a single point of consciousness.[282] John Mill, annotating this account, says: "The phenomenon of Self and that of Memory are merely two sides of the same fact, or two different modes of viewing the same fact. We may, as psychologists, set out from either of them, and refer the other to it...But it is hardly allowable to do both. At least it must be said that by doing so we explain neither. We only show that the two things are essentially the same; that my memory of having ascended Skiddaw on a given day, and my consciousness of being the same person who ascended Skiddaw on that day, are two modes of stating the same fact: a fact which psychology has as yet failed to resolve into anything more elementary. In analyzing the complex phenomena of consciousness, we must come to something ultimate; and we seem to have reached two elements which have a good _prima facie_ claim to that title. There is, first,...the difference between a fact and the Thought of that fact: a distinction which we are able to cognize in the past, and which then constitutes Memory, and in the future, when it constitutes Expectation; but in neither case can we give any account of it except that it exists...Secondly, in addition to this, and setting out from the belief...that the idea I now have was derived from a previous sensation...there is the further conviction that this sensation...was my own; that it happened to my self. In other words, I am aware of a long and uninterrupted succession of past feelings, going back as far as memory reaches, and terminating with the sensations I have at the present moment, all of which are connected by an inexplicable tie, that distinguishes them not only from any succession or combination in mere thought, but also from the parallel successions of feelings which I believe, on satisfactory evidence, to have happened to each of the other beings, shaped like myself, whom I perceive around me.
This succession of feelings, which I call my memory of the past, is that by which I distinguish my Self. Myself is the person who had that series of feelings, and I know nothing of myself, by direct knowledge, except that I had them. But there is a bond of some sort among all the parts of the series, which makes me say that they were feelings of a person who was the same person throughout [according to us this is their 'warmth' and resemblance to the 'central spiritual self' now actually felt] and a different person from those who had any of the parallel successions of feelings; and this bond, to me, constitutes my Ego. Here I think the question must rest, until some psychologist succeeds better than anyone else has done, in showing a mode in which the analysis can be carried further."[283] The reader must judge of our own success in carrying the analysis farther. The various distinctions we have made are all parts of an endeavor so to do. John Mill himself, in a later-written passage, so far from advancing in the line of analysis, seems to fall back upon something perilously near to the Soul. He says: "The fact of recognizing a sensation,...remembering that it has been felt before, is the simplest and most elementary fact of memory: and the _inexplicable tie_...which connects the present consciousness with the past one of which it reminds me, is as near as I think we can get to a positive conception of Self. That there is something real in this tie, real as the sensations themselves, and not a mere product of the laws of thought without any fact corresponding to it, I hold to be indubitable...This original element,...to which we cannot give any name but its own peculiar one, without implying some false or ungrounded theory, is the Ego, or Self. As such I ascribe a reality to the Ego--to my own mind--different from that real existence as a Permanent Possibility, which is the only reality I acknowledge in Matter...We are forced to apprehend every part of the series as linked with the other parts by _something in common_ which is not the feelings themselves, any more than the succession of the feelings is the feelings themselves; and as that which is the same in the first as in the second, in the second as in the third, in the third as in the fourth, and so on, must be the same in the first and in the fiftieth, this common element is a permanent element. But beyond this we can affirm nothing of it except the states of consciousness themselves.
The feelings or consciousnesses which belong or have belonged to it, and its possibilities of having more, are the only facts there are to be asserted of Self--the only positive attributes, except permanence, which we can ascribe to it."[284] Mr. Mill's habitual method of philosophizing was to affirm boldly some general doctrine derived from his father, and then make so many concessions of detail to its enemies as practically to abandon it altogether.[285] In this place the concessions amount, so far as they are intelligible, to the admission of something very like the Soul.
This 'inexplicable tie' which connects the feelings, this 'something in common' by which they are linked and which is not the passing feelings themselves, but something 'permanent,' of which we can 'affirm nothing' save its attributes and its permanence, what is it but metaphysical Substance come again to life? Much as one must respect the fairness of Mill's temper, quite as much must one regret his failure of acumen at this point. At bottom he makes the same blunder as Hume: the sensations _per se_, he thinks, have no 'tie.' The tie of resemblance and continuity which the remembering Thought finds among them is not a 'real tie' but 'a mere product of the laws of thought;' and the fact that the present Thought 'appropriates' them is also no real tie. But whereas Hume was contented to say that there might after all _be_ no 'real tie,' Mill, unwilling to admit this possibility, is driven, like any scholastic, to place it in a non-phenomenal world.
John Mill's concessions may be regarded as the _definitive bankruptcy of the associationist description_ of the consciousness of self, starting, as it does, with the best intentions, and dimly conscious of the path, but 'perplexed in the extreme' at last with the inadequacy of those 'simple feelings,' non-cognitive, non-transcendent of themselves, which were the only baggage it was willing to take along.
One must _beg_ memory, knowledge on the part of the feelings of something outside themselves. That granted, every other true thing follows naturally, and it is hard to go astray. The knowledge the present feeling has of the past ones is a real tie between them, so is their resemblance; so is their continuity; so is the one's 'appropriation' of the other: all are real ties, realized in the judging Thought of every moment, the only place where _disconnections_ could be realized, did they exist. Hume and Mill both imply that a disconnection can be realized there, whilst a tie cannot. But the ties and the disconnections are exactly on a par, in this matter of self-consciousness. The way in which the present Thought appropriates the past is a real way, so long as no other owner appropriates it in a more real way, and so long as the Thought has no grounds for repudiating it stronger than those which lead to its appropriation.
But no other owner ever does in point of fact present himself for my past; and the grounds which I perceive for appropriating it--viz., continuity and resemblance with the present--outweigh those I perceive for disowning it--viz., distance in time. My present Thought stands thus in the plenitude of ownership of the train of my past selves, is owner not only _de facto_, but _de jure_, the most real owner there can be, and all without the supposition of any 'inexplicable tie,' but in a perfectly verifiable and phenomenal way.
Turn we now to what we may call THE TRANSCENDENTALIST THEORY.
which owes its origin to Kant. Kant's own statements are too lengthy and obscure for verbatim quotation here, so I must give their substance only. Kant starts, as I understand him, from a view of the _Object_ essentially like our own description of it on p. 275 ff., that is, it is a system of things, qualities or facts in relation. "_Object_ is that in the knowledge (Begriff) of which the Manifold of a given Perception is connected."[286] But whereas we simply begged the vehicle of this connected knowledge in the shape of what we call the present Thought, or section of the Stream of Consciousness (which we declared to be the ultimate fact for psychology), Kant denies this to be an ultimate fact and insists on analyzing it into a large number of distinct, though equally essential, elements. The 'Manifoldness' of the Object is due to Sensibility, which _per se_ is chaotic, and the unity is due to the synthetic handling which this Manifold receives from the higher faculties of Intuition, Apprehension, Imagination, Understanding, and Apperception. It is the one essential spontaneity of the Understanding which, under these different names, brings unity into the manifold of sense.
"The Understanding _is_, in fact, nothing more than the faculty of binding together _a priori_, and of bringing the Manifold of given ideas under the unity of Apperception, which consequently is the supreme principle in all human knowledge" (§ 16).
The material connected must be _given_ by lower faculties to the Understanding, for the latter is not an intuitive faculty, but by nature 'empty.' And the bringing of this material 'under the unity of Apperception' is explained by Kant to mean the thinking it always so that, whatever its other determinations be, it may be known as _thought by me_.[287] Though this consciousness, that _I think it_, need not be at every moment explicitly realized, it is always _capable_ of being realized. For if an object _incapable_ of being combined with the idea of a thinker were there, how could it be known, how related to other objects, how form part of 'experience' at all?
The awareness that _I think_ is therefore implied in all experience.
No connected consciousness of anything without that of _Self_ as its presupposition and 'transcendental' condition! All things, then, so far as they are intelligible at all, are so through combination with pure consciousness of _Self_, and apart from this, at least potential, combination nothing is knowable _to us_ at all.
But this self, whose consciousness Kant thus established deductively as a _conditio sine quâ non_ of experience, is in the same breath denied by him to have any positive attributes. Although Kant's name for it--the 'original transcendental synthetic Unity of Apperception'--is so long, our consciousness _about_ it is, according to him, short enough. Self-consciousness of this 'transcendental' sort tells us, 'not how we appear, not how we inwardly are, but only _that_ we are' (§ 25). At the basis of our knowledge of our selves there lies only "the simple and utterly empty idea: _I_; of which we cannot even say we have a notion, but only a consciousness which accompanies all notions. In this _I_, or _he_ or _it_ (the thing) which thinks, nothing more is represented than the bare transcendental Subject of the knowledge = _x_, which is only recognized by the thoughts which are its predicates, and of which, taken by itself, we cannot form the least conception" (_ibid._ 'Paralogisms'). The pure Ego of all apperception is thus for Kant not the soul, but only that 'Subject' which is the necessary correlate of the Object in all knowledge. There _is_ a soul, Kant thinks, but this mere ego-form of our consciousness tells us nothing about it, neither whether it be substantial, nor whether it be immaterial, nor whether it be simple, nor whether it be permanent.
These declarations on Kant's part of the utter barrenness of the consciousness of the pure Self, and of the consequent impossibility of any deductive or 'rational' psychology, are what, more than anything else, earned for him the title of the 'all-destroyer.' The only self we know anything positive _about_, he thinks, is the empirical _me_, not the pure _I_; the self which is an object among other objects and the 'constituents' of which we ourselves have seen, and recognized to be phenomenal things appearing in the form of space as well as time.
This, for our purposes, is a sufficient account of the 'transcendental' Ego.
Those purposes go no farther than to ascertain whether anything in Kant's conception ought to make us give up our own, of a remembering