The Essential John Dewey: 20+ Books in One Edition. Джон Дьюи
Читать онлайн книгу.
self, which, as being so in contact, has the character of reality; and there is the qualification of this reality by the reference to it of some meaning such as can be symbolized by a name (p. 77).
Our point of contact with reality, the place where reality gets into the thought-process, is, according to this view, to be found in the simplest, most indefinite type of judgment of perception. We meet with reality in the mere undefined "this" of primitive experience. But each such elementary judgment about an undefined "this" is an isolated bit of experience. Each "this" could give us only a detached bit of reality at best, and the further problem now confronts us of how we ever succeed in piecing our detached bits of reality together to form a real world. Bosanquet's explanation is, in his words, this:
The real world, as a definite organized system, is for me an extension of this present sensation and self-feeling by means of judgment, and it is the essence of judgment to effect and sustain such an extension (p. 77).
Again he says:
The subject in every judgment of Perception is some given spot or point in sensuous contact with the percipient self. But, as all reality is continuous, the subject is not merely this given spot or point. It is impossible to confine the real world within this or that presentation. Every definition or qualification of a point in present perception is affirmed of the real world which is continuous with present perception. The ultimate subject of the perceptive judgment is the real world as a whole, and it is of this that, in judging, we affirm the qualities or characteristics. (P. 78.)
The problem is the same as that with which Bradley struggles in his treatment of the subject of the judgment, and the solution is also the same. Bradley's treatment of the point is perhaps somewhat more explicit. Like Bosanquet, he starts with the proposition that the subject of the judgment must be reality itself and not an idea, because, if it were the latter, judgment could never give us anything but a union of ideas, and a union of ideas remains forever universal and hypothetical. It can never acquire the uniqueness, the singularity, which is necessary to make it refer to the real. Uniqueness can be found only in our contact with the real. But just where does our contact with the real occur? Bradley recognizes the fact that it cannot be the content—even in the case of a simple sensation—which gives us reality. The content of a sensation is a thing which is in my consciousness, and which has the form which it presents because it is in my consciousness. Reality is precisely something which is not itself sensation, and cannot be in my consciousness. If I say, "This is white," the "this" has a content which is a sensation of whiteness. But the sensation of whiteness is not reality. The experience brings with it an assurance of reality, not because its content is the real, but because it is "my direct encounter in sensible presentation with the real world."46 To make the matter clearer, Bradley draws a distinction between the this and the thisness. In every experience, however simple, there is a content—a "thisness"—which is not itself unique. Considered merely as content, it is applicable to an indefinite number of existences; in other words, it is an idea. But there is also in every experience a "this" which is unique, but which is not a content. It is a mere sign of existence which gives the experience uniqueness, but nothing else. The "thisness" falls on the side of the content, and the "this" on the side of existence. It is exactly the distinction which Bosanquet has in mind in the passages quoted in which he tells us that "reality is given for me in present sensuous perception, and in the immediate feeling of my own sentient existence which goes with it;" and again when he says: "There is a presence of a something in contact with our sensitive self, which, as being so in contact, has the character of reality." The same point is made somewhat more explicitly in his introduction when he says that the individual's present perception is not, indeed, reality as such, but is his present point of contact with reality as such (p. 3).
But has this distinction between the content of an experience and its existence solved the problem of how we know reality? When Bosanquet talks of knowing reality, he means possessing ideas which are an accurate reproduction of reality. It is still far from clear how, according to his own account, we could ever have any assurance that our ideas do represent reality accurately, if we can nowhere find a point at which the content of an experience can be held to give us reality. The case is still worse when we go beyond the problem of how any particular bit of reality can be known, and ask ourselves how reality as a whole can be known. The explanation offered by both Bradley and Bosanquet is that by means of judgment we extend the bit of reality of whose existence we get a glimpse through a peep-hole in the curtain of sensuous perception, and thus build up the organized system of reality. In a passage previously quoted, Bosanquet tells us that all reality is continuous, and therefore the real subject of a judgment cannot be the mere spot or point which is given in sensuous perception, but must be the real world as a whole. But how does he know that reality is continuous, and that the real world is an organized system? Our only knowledge of reality comes through judgment, and judgment brings us into contact with reality only at isolated points. When he tells us that reality is a continuous whole, he does so on the basis of a metaphysical presupposition which is not justifiable by his theory of the judgment. The only statement about reality which could be maintained on the basis of his theory is that some sort of a reality exists, but the theory furnishes equal justification for the assurance that this reality is of such a nature that we can never know anything more about it than the bare fact of its existence. Moreover, the bare fact of the existence of reality comes to us merely in the form of a feeling of our own sentient existence which goes with sense-perception. But the mere assurance that somewhere behind the curtain of sensuous perception reality exists (even if this could go unchallenged), accompanied by the certainty that we can never by any possibility know anything more about it, is practically equivalent to the denial of the possibility of knowledge.47
Although the denial of the possibility of knowledge seems to be the logical outcome of the premises, it is not the conclusion reached by Bosanquet. At the outset of his treatise, Bosanquet propounds the fundamental question we have been considering in these words: "How does the analysis of knowledge as a systematic function, or system of functions, explain that relationship in which truth appears to consist, between the human intelligence on the one hand, and fact or reality on the other?" His answer is: "To this difficulty there is only one reply. If the object-matter of reality lay genuinely outside the system of thought, not only our analysis, but thought itself, would be unable to lay hold of reality." (Pp. 2, 3.) The statement is an explicit recognition of the impossibility of bridging the chasm between a reality outside the content of knowledge and a known real world. It brings before us the dilemma contained in Bosanquet's treatment of the subject of the judgment. On the one hand the subject of the judgment must be outside the realm of my thoughts. If it were not, judgment would merely establish a relation between my ideas and would give me no knowledge of the real world. On the other hand, the subject of the judgment must be within the realm of my thoughts. If it were not, I could never assert anything of it; could never judge, or know it. The stress he lays on the first horn of the dilemma has been shown. It remains to show his recognition of the second horn, and to find out whether or not he discovers any real reconciliation between the two.
Bosanquet sums up the section of the introduction on knowledge and its content, truth, with the following paragraph:
The real world for every individual is thus emphatically his world; an extension and determination of his present perception, which perception is to him not indeed reality as such, but his point of contact with reality as such. Thus in the enquiry which will have to be undertaken as to the logical subject of the judgment, we shall find that the subject, however it may shift, contract, and expand, is always in the last resort some greater or smaller element of this determinate reality, which the individual has constructed by identifying significant ideas with that world of which he has assurance through his own perceptive experience. In analyzing common judgment it is ultimately one to say that I judge and that the real world for me, my real world, extends itself, or maintains its organized extension. This is the ultimate connection by which the distinction of subject and predication is involved in the act of affirmation or enunciation which is the differentia of judgment. (Pp. 3, 4).
Here the subject of the judgment appears as an element of a reality which the individual has constructed by identifying significant ideas with that world of which he has assurance through his own perceptive experience.