Sensations acquire meaning through being identified with and discriminated from other sensations to which they are related. But it is not as mere existences that they are compared and related, but as already ideas or meanings. "The identification is of the meaning of the present sensation with some meaning previously experienced, but which, although previously experienced, still exists because it is meaning, and not occurrence."[31] The existences to which meanings attach come and go, and are new for every new appearance of the idea in consciousness; but the meanings remain. "The experience, as an existence at a given time, has forever vanished. Its meaning, as an ideal quality, remains as long as the mind does. Indeed, its remaining is the remaining of the mind; the conservation of the ideal quality of experience is what makes the mind a permanence."[32]
It is not possible, Dewey says, to imagine a primitive state in which unmeaning sensations existed alone. Meaning cannot arise out of that which has no meaning. "Sensations cannot revive each other except as members of one whole of meaning; and even if they could, we should have no beginning of significant experience. Significance, meaning, must be already there. Intelligence, in short, is the one indispensable condition of intelligent experience."[33]
Thinking is an act which idealizes experience by transforming sensations into an intelligible whole. It works by seizing upon the ideal element which is already there, conserving it, and developing it. It produces knowledge by supplying relations to experience. Dewey realizes that his act of intelligence is similar to Kant's 'apperceptive unity.' He says: "The mention of Kant's name suggests that both his strength and his weakness lie in the line just mentioned. It is his strength that he recognizes that an apperceptive unity interpreting sensations through categories which constitute the synthetic content of self-consciousness is indispensable to experience. It is his weakness that he conceives this content as purely logical, and hence as formal."[34] Kant's error was to treat the self as formal and held apart from its material. "The self does not work with a priori forms upon an a posteriori material, but intelligence as ideal (or a priori) constitutes experience (or the a posteriori) as having meaning."[35] Dewey's standpoint here seems to be similar to that of Green. But as Kant's unity of apperception became for Green merely a symbol of the world's inherent intelligibility, the latter did not regard it as an actual process of synthesis. Dewey fails to make a distinction, which might have been useful to him, between Kant's unity of apperception and his productive imagination. It is the latter which Dewey retains, and he tends to identify it with the empirical process of the understanding. Knowing, psychologically considered, is a synthetic process. "And this is to say that experience grows as intelligence adds out of its own ideal content ideal quality.... The growth of the power of comparison implies not a formal growth, but a synthetic internal growth."[36] Dewey, of course, views understanding as an integral part of reality's processes rather than as a process apart, but it is for him a very special activity, which builds up the meaning of experience. "Knowledge might be indifferently described, therefore, as a process of idealisation of experience, or of realisation of intelligence. It is each through the other. Ultimately the growth of experience must consist in the development out of itself by intelligence of its own implicit ideal content upon occasion of the solicitation of sensation."[37]
The difficulties of Dewey's original position are numerous. The relation of the self, as a synthetic activity, to the "Eternal Consciousness," in which meaning already exists in a completed form, is especially perplexing. Does the self merely trace out the meaning already present in reality, or is it a factor in the creation of meaning? It is clear that if the thinking process is a genuinely synthetic activity, imposing meaning on sensations, it literally 'makes the world' of our experience. But, on the other hand, if meaning is given to thought, as a part of its data, the self merely reproduces in a subjective experience the thought which exists objectively in the eternal mind. The dilemma arises as a result of Dewey's initial conception of reality as a structure of sensations and meanings. This conception of reality must be given up, if the notion of thought as a process of idealization is to be retained.
In 1888, Dewey's Leibniz's New Essays Concerning the Human Understanding appeared, and during the two years following he appears to have become interested in ethical theory, the results of his study beginning to appear in 1890. Dewey's ethical theories have so important a bearing upon his logical theory as to demand special attention. They will be reserved, therefore, for a separate chapter, and attention will be given here to the more strictly logical studies of the period.
The three years which intervened between the publication of the essay on "Knowledge as Idealisation" and the appearance of an article "On Some Current Conceptions of the term 'Self,'" in Mind (1890),[38] did not serve to divert Dewey's attention from the inquiries in which he had previously been interested. On the contrary, the later article shows how persistently his mind must have dwelt upon the problems connected with the notion of the self as a synthetic activity in experience.
The immediate occasion for the article on the Self was the appearance of Professor Andrew Seth's work, Hegelianism and Personality (1889). Dewey appears to have been influenced by Seth at an even earlier period,[39] and he now found the lectures on Hegel stimulating in connection with his own problems about thought and reality.
It will not be necessary to go into the details of Dewey's criticism of the three ideas of the self presented by Seth. Since it is Dewey's own position that is in question, it is better to begin with his account of the historical origin of these definitions, "chiefly as found in Kant, incidentally in Hegel as related to Kant."[40] Dewey turns to the 'Transcendental Deduction,' and follows Kant's description of the synthetic unity of apperception. "Its gist," he says, "in the second edition of the K.d.r.V., is the proof that the identity of self-consciousness involves the synthesis of the manifold of feelings through rules or principles which render this manifold objective, and that, therefore, the analytic identity of self-consciousness involves an objective synthetic unity of consciousness."[41] To say that self-consciousness is identical is a merely analytical proposition, and, as it stands, unfruitful. "But if we ask how we know this sameness or identity of consciousness, the barren principle becomes wonderfully fruitful."[42] In order to know reality as mine, not only must the consciousness that it is mine accompany each particular impression, but each must be known as an element in one consciousness. "The sole way of accounting for this analytic identity of consciousness is through the activity of consciousness in connecting or 'putting together' the manifold of sense."[43]
In the 'Deduction' of the first Critique, Dewey continues, Kant begins with the consciousness of objects, rather than with the identity of self-consciousness. Here also consciousness implies a unity, which is not merely formal, but one which actually connects the manifold of sense by an act. "Whether, then, we inquire what is involved in mere sameness of consciousness, or what is involved in an objective world, we get the same answer: a consciousness which is not formal or analytic, but which is synthetic of sense, and which acts universally (according to principles) in this synthesis."[44]
The term 'Self,' as thus employed by Kant, Dewey says, is the correlative of the intelligible world. "It is the transcendental self looked at as 'there,' as a product, instead of as an activity or process."[45] This, however, by no means exhausts what Kant means by the self, for while he proceeds in the 'Deduction' as if the manifold of sense and the synthetic unity of the self were strictly correlative, he assumes a different attitude elsewhere. The manifold of sense is something in relation to the thing-in-itself, and the forms of thought have a reference beyond their mere application to the manifold. In the other connections the self appears as something purely formal; something apart from its manifestation in experience. In view of the wider meaning of the self, Dewey asks, "Can the result of the transcendental deduction stand without further interpretation?" It would appear that the content of the self is not the same as the content of the known world. The self is too great to exhaust itself in relation to sensation. "Sense is, as it were, inadequate to the relations which constitute self-consciousness, and thus there must also remain a surplusage in the self, not entering into the make-up of the known world."[46] This follows from the fact that, while the self is unconditioned, the manifold of sensation is conditioned, as given, by the forms of space and time. "Experience can never be complete enough to have a content equal to that of self-consciousness, for experience can never escape its limitation through space and time. Self-consciousness is real, and not merely logical; it is the ground of the reality of experience; it is wider than experience, and yet is unknown except so far as it is reflected through its own determinations in experience,—this is the result of our analysis of Kant, the Ding-an-Sich being eliminated but the Kantian method and all presuppositions not involved in the notion of the Ding-an-Sich being retained."[47]