Читать книгу Studies in Logical Theory - Джон Дьюи - Страница 12
THOUGHT AND ITS SUBJECT-MATTER: THE CONTENT AND
OBJECT OF THOUGHT
ОглавлениеIn the foregoing discussion, particularly in the last chapter, we were led repeatedly to recognize that thought has its own content. At times Lotze gives way to the tendency to define thought entirely in terms of modes and forms of activity which are exercised by it upon a strictly foreign material. But two motives continually push him in the other direction. (1) Thought has a distinctive work to do, one which involves a qualitative transformation of (at least) the relationships of the presented matter; as fast as it accomplishes this work, the subject-matter becomes somehow thought's own. As we have just seen, the data are progressively organized to meet thought's ideal of a complete whole, with its members interconnected according to a determining principle. Such progressive organization throws backward doubt upon the assumption of the original total irrelevancy of the data and thought-form to each other. (2) A like motive operates from the side of the subject-matter. As merely foreign and external, it is too heterogeneous to lend itself to thought's exercise and influence. The idea, as we saw in the first chapter, is the convenient medium through which Lotze passes from the purely heterogeneous psychical impression or event, which is totally irrelevant to thought's purpose and working, over to a state of affairs which can reward thought. Idea as meaning forms the bridge from the brute factuality of the psychical impression over to the coherent value of thought's own content.
We have, in this chapter, to consider the question of the idea or content of thought from two points of view: first, the possibility of such a content—its consistency with Lotze's fundamental premises; secondly, its objective character—its validity and test.
I. The question of the possibility of a specific content of thought is the question of the nature of the idea as meaning. Meaning is the characteristic content of thought as such. We have thus far left unquestioned Lotze's continual assumption of meaning as a sort of thought-unit; the building-stone of thought's construction. In his treatment of meaning, Lotze's contradictions regarding the antecedents, data, and content of thought reach their full conclusion. He expressly makes meaning to be the product of thought's activity and also the unreflective material out of which thought's operations grow.
This contradiction has been worked out in accurate and complete detail by Professor Jones.[30] He summarizes it as follows (p. 99): "No other way was left to him [Lotze] excepting this of first attributing all to sense and afterwards attributing all to thought, and, finally of attributing it to thought only because it was already in its material. This seesaw is essential to his theory; the elements of knowledge as he describes them can subsist only by the alternate robbery of each other." We have already seen how strenuously Lotze insists upon the fact that the given subject-matter of thought is to be regarded wholly as the work of a physical mechanism, "without any action of thought."[31] But Lotze also states that if the products of the psychical mechanism "are to admit of combination in the definite form of a thought, they each require some previous shaping to make them into logical building-stones and to convert them from impressions into ideas. Nothing is really more familiar to us than this first operation of thought; the only reason why we usually overlook it is that in the language which we inherit, it is already carried out, and it seems, therefore, to belong to the self-evident presuppositions of thought, not to its own specific work."[32] And again (Vol. I, p. 23) judgments "can consist of nothing but combinations of ideas which are no longer mere impressions: every such idea must have undergone at least the simple formation mentioned above." Such ideas are, Lotze goes on to urge, already rudimentary concepts—that is to say, logical determinations.
The obviousness of the logical contradiction of attributing to a preliminary specific work of thought exactly the condition of affairs which is elsewhere explicitly attributed to a psychical mechanism prior to any thought-activity, should not blind us to its meaning and relative necessity. The impression, it will be recalled, is a mere state of our own consciousness—a mood of ourselves. As such it has simply de facto relations as an event to other similar events. But reflective thought is concerned with the relationship of a content or matter to other contents. Hence the impression must have a matter before it can come at all within the sphere of thought's exercise. How shall it secure this? Why, by a preliminary activity of thought which objectifies the impression. Blue as a mere sensuous irritation or feeling is given a quality, the meaning "blue"—blueness; the sense-impression is objectified; it is presented "no longer as a condition which we undergo, but as a something which has its being and its meaning in itself, and which continues to be what it is, and to mean what it means whether we are conscious of it or not. It is easy to see here the necessary beginning of that activity which we above appropriated to thought as such: it has not yet got so far as converting coexistence into coherence. It has first to perform the previous task of investing each single impression with an independent validity, without which the later opposition of their real coherence to mere coexistence could not be made in any intelligible sense."[33]
This objectification, which converts a sensitive state into a sensible matter to which the sensitive state is referred, also gives this matter "position," a certain typical character. It is not objectified in a merely general way, but is given a specific sort of objectivity. Of these kinds of objectivity there are three mentioned: that of a substantive content; that of an attached dependent content; that of an active relationship connecting the various contents with each other. In short, we have the types of meaning embodied in language in the form of nouns, adjectives, and verbs. It is through this preliminary formative activity of thought that reflective or logical thought has presented to it a world of meanings ranged in an order of relative independence and dependence, and ranged as elements in a complex of meanings whose various constituent parts mutually influence each other's meanings.[34]
As usual, Lotze mediates the contradiction between material constituted by thought and the same material just presented to thought, by a further position so disparate to each that, taken in connection with each in a pair, and by turns, it seems to bridge the gulf. After describing the prior constitutive work of thought as above, he goes on to discuss a second phase of thought which is intermediary between this and the third phase, viz., reflective thought proper. This second activity is that of arranging experienced quales in series and groups, thus ascribing a sort of universal or common somewhat to various instances (as already described; see p. 55). On one hand, it is clearly stated that this second phase of thought's activity is in reality the same as the first phase: since all objectification involves positing, since positing involves distinction of one matter from others, and since this involves placing it in a series or group in which each is measurably marked off, as to the degree and nature of its diversity, from every other. We are told that we are only considering "a really inseparable operation" of thought from two different sides: first, as to the effect which objectifying thought has upon the matter as set over against the feeling subject, secondly, the effect which this objectification has upon the matter in relation to other matters.[35] Afterward, however, these two operations are declared to be radically different in type and nature. The first is determinant and formative; it gives ideas "the shape without which the logical spirit could not accept them." In a way it dictates "its own laws to its object-matter."[36] The second activity of thought is rather passive and receptive. It simply recognizes what is already there. "Thought can make no difference where it finds none already in the matter of impressions."[37] "The first universal, as we saw, can only be experienced in immediate sensation. It is no product of thought, but something that thought finds already in existence."[38]
The obviousness of this further contradiction is paralleled only by its inevitableness. Thought is in the air, is arbitrary and wild in dealing with meanings, unless it gets its start and cue from actual experience. Hence the necessity of insisting upon thought's activity as just recognizing the contents already given. But, on the other hand, prior to the work of thought there is to Lotze no content or meaning. It requires a work of thought to detach anything from the flux of sense-irritations and invest it with a meaning of its own. This dilemma is inevitable to any writer who declines to consider as correlative the nature of thought-activity and thought-content from the standpoint of their generating conditions in the movement of experience. Viewed from such a standpoint the principle of solution is clear enough. As we have already seen (p. 53), the internal dissension of an experience leads to detaching certain values previously absorptively integrated into the concrete experience as part of its own qualitative coloring; and to relegating them, for the time being, (pending integration into further immediate values of a reconstituted experience) into a world of bare meanings, a sphere qualified as ideal throughout. These meanings then become the tools of thought in interpreting the data, just as the sense-qualities which define the presented situation are the immediate object to thought. The two as mutually referred are content. That is, the datum and the thought-mode or idea as connected are the object of thought.
To reach this unification is thought's objective or goal. Exactly the same value is idea, as either tool or content, according as it is taken as instrumental or as accomplishment. Every successive cross-section of the thought-situation presents what may be taken for granted as the outcome of previous thinking, and consequently as the determinant of further reflective procedure. Taken as defining the point reached in the thought-function and serving as constituent unit of further thought, it is content. Lotze's instinct is sure in identifying and setting over against each other the material given to thought and the content which is thought's own "building-stone." His contradictions arise simply from the fact that his absolute, non-historic method does not permit him to interpret this joint identity and distinction in a working, and hence relative, sense.
II. The question of how the possibility of meanings, or thought-contents, is to be understood merges imperceptibly into the question of the real objectivity or validity of such contents. The difficulty for Lotze is the now familiar one: So far as his logic compels him to insist that these meanings are the possession and product of thought (since thought is an independent activity), the ideas are merely ideas; there is no test of objectivity beyond the thoroughly unsatisfactory and formal one of their own mutual consistency. In reaction from this Lotze is thrown back upon the idea of these contents as the original matter given in the impressions themselves. Here there seems to be an objective or external test by which the reality of thought's operations may be tried; a given idea is verified or found false according to its measure of correspondence with the matter of experience as such. But now we are no better off. The original independence and heterogeneity of impressions and of thought is so great that there is no way to compare the results of the latter with the former. We cannot compare or contrast distinctions of worth with bare differences of factual existence (Vol. I, p. 2). The standard or test of objectivity is so thoroughly external that by original definition it is wholly outside the realm of thought. How can thought compare its own contents with that which is wholly outside itself?
Or again, the given material of experience apart from thought is precisely the relatively chaotic and unorganized; it even reduces itself to a mere sequence of psychical events. What rational meaning is there in directing us to compare the highest results of scientific inquiry with the bare sequence of our own states of feeling; or even with the original data whose fragmentary and uncertain character was the exact motive for entering upon scientific inquiry? How can the former in any sense give a check or test of the value of the latter? This is professedly to test the validity of a system of meanings by comparison with that whose defects and errors call forth the construction of the system of meanings by which to rectify and replace themselves. Our subsequent inquiry simply consists in tracing some of the phases of the characteristic seesaw from one to the other of the two horns of the now familiar dilemma: either thought is separate from the matter of experience, and then its validity is wholly its own private business; or else the objective results of thought are already in the antecedent material, and then thought is either unnecessary, or else has no way of checking its own performances.
1. Lotze assumes, as we have seen, a certain independent validity in each meaning or qualified content, taken in and of itself. "Blue" has a certain validity, or meaning, in and of itself; it is an object for consciousness as such. After the original sense-irritation through which it was mediated has entirely disappeared, it persists as a valid idea, as a meaning. Moreover, it is an object or content of thought for others as well. Thus it has a double mark of validity: in the comparison of one part of my own experience with another, and in the comparison of my experience as a whole with that of others. Here we have a sort of validity which does not raise at all the question of metaphysical reality (Vol. I, pp. 14, 15). Lotze thus seems to have escaped from the necessity of employing as check or test for the validity of ideas any reference to a real outside the sphere of thought itself. Such terms as "conjunction," "franchise," "constitution," "algebraic zero," etc., etc., claim to possess objective validity. Yet none of these professes to refer to a reality beyond thought. Generalizing this point of view, validity or objectivity of meaning means simply that which is "identical for all consciousness" (Vol. I, p. 3); "it is quite indifferent whether certain parts of the world of thought indicate something which has beside an independent reality outside of thinking minds, or whether all that it contains exists only in the thoughts of those who think it, but with equal validity for them all" (Vol. I, p. 16).
So far it seems clear sailing. Difficulties, however, show themselves, the moment we inquire what is meant by a self-identical content for all thought. Is this to be taken in a static or in a dynamic way? That is to say: Does it express the fact that a given content or meaning is de facto presented to the consciousness of all alike? Does this coequal presence guarantee an objectivity? Or does validity attach to a given meaning or content in so far as it directs and controls the further exercise of thinking, and thus the formation of further new contents of consciousness?
The former interpretation is alone consistent with Lotze's notion that the independent idea as such is invested with a certain validity or objectivity. It alone is consistent with his assertion that concepts precede judgments. It alone, that is to say, is consistent with the notion that reflective thinking has a sphere of ideas or meanings supplied to it at the outset. But it is impossible to entertain this belief. The stimulus which, according to Lotze, goads thought on from ideas or concepts to judgments and inferences, is in truth simply the lack of validity, of objectivity in its original independent meanings or contents. A meaning as independent is precisely that which is not invested with validity, but which is a mere idea, a "notion," a fancy, at best a surmise which may turn out to be valid (and of course this indicates possible reference); a standpoint to have its value determined by its further active use. "Blue" as a mere detached floating meaning, an idea at large, would not gain in validity simply by being entertained continuously in a given consciousness; or by being made at one and the same time the persistent object of attentive regard by all human consciousnesses. If this were all that were required, the chimera, the centaur, or any other subjective construction, could easily gain validity. "Christian Science" has made just this notion the basis of its philosophy.