IMMANUEL KANT: Philosophical Books, Critiques & Essays. Immanuel Kant

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      SECTION II

       ON THE DISTINCTION BETWEEN THE SENSIBLE AND THE INTELLIGIBLE GENERALLY

       Table of Contents

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      Sensibility is the receptivity of a subject by which it is possible for its representative state to be affected in a certain way by the presence of some object. Intelligence, rationality, is the faculty of a subject by which it is able to represent to itself what by its quality cannot enter the senses. The object of sensibility is sensuous; what contains nothing but what is knowable by the intellect is intelligible. In the older schools the former was called phenomenon, the latter noumenon. To the extent to which knowledge is subject to the laws of sensuousness it is sensuous; to the extent to which it is subject to the laws of intelligence it is intellectual or rational.

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      Since whatever is in sensuous knowledge depends upon the subject’s peculiar nature, as the latter is capable of receiving some modification or other from the presence of objects which on account of subjective variety may be different in different subjects, whilst whatever knowledge is exempt from such subjective condition regards the object only, it is plain that what is sensuously thought is the representation of things as they appear, while the intellectual presentations are the representations of things as they are. Now there is in sense representation something which may be called the matter, namely, the sensation, and in addition to this something which may be called the form, namely, the appearance of the sensible things, showing forth to what extent a natural law of the mind co-ordinates the variety of sensuous affections. Furthermore, as the sensation constituting the matter of sensuous representations argues, to be sure, the presence of something sensible, but depends as to quality on the nature of the subject, as the latter is modifiable by the object; exactly so does the form of that representation witness certainly some reference or relation among the sensuous percepts, but itself is not, as it were, the shadowing forth or outlining of the object, but only a certain law inherent in the mind for co-ordinating among themselves sensuous percepts arising from the presence of the object. For by form or appearance the objects do not strike the sense, hence in order that various sense-affecting objects may coalesce into some whole of representation, there is need of an inner principle of the mind by which, in accordance with stable and innate laws, that variety shall take on some appearance.

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      To sensual cognition then pertains both the matter which is sensation and by which the knowledge is said to be sensual, and the form by which, even though we find it without any sensation, the representations are called sensuous. On the other hand, as to intellectual concepts, it is above all to be well noted that the use of the intellect, or of the superior faculty of the soul, is two-fold. By the first use are given the very concepts both of things and relations. This is the real use. By the second use they, whencesoever given, are merely by common marks subordinated to one another, the lower to the higher, and compared among themselves according to the principle of contradiction. This is called the logical use. The logical use of the intellect is common to all the sciences; the real use is not. For a cognition given in any wise is regarded either as contained under or as opposed to a mark common to several cognitions, and this either by immediate apposition, as in judgments in order to distinct cognition, or mediately, as in reasoning, in order to adequate cognition. Thus sensuous knowledge being given, sensuous percepts are by the logical use of the intellect subordinated to other sensuous percepts, as to common concepts, and phenomena to the more general laws of phenomena. In this connection it is of the greatest moment to note that cognitions must continue to be regarded as sensuous, no matter how great may have been the logical use of the intellect upon them. For they are called sensuous on account of their origin, not of their collation by identity and opposition. Hence, empirical laws, though of the greatest generality, are, nevertheless, sensual, and the principles of sensuous form in geometry, the relations in determinate space, however much the intellect arguing according to logical rules from what is sensuously given, by pure intuition, be employed upon them, do not for that matter pass beyond the class of sense-percepts. That in sense-percepts and phenomena which precedes the logical use of the intellect is called appearance, while the reflex knowledge originating from several appearances compared by the intellect is called experience. Thus there is no way from appearance to experience except by reflection according to the logical use of the intellect. The common concepts of experience are termed empirical, its objects phenomena, and the laws as well of experience as of all sensuous cognition generally are called the laws of phenomena. Empirical concepts, then, are not by a reduction to greater universality rendered intellectual in the real sense and do not transcend the species of sensuous cognition, but, however high abstraction may carry them, remain indefinitely sensuous.

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      Now as to strictly intellectual concepts in which the use of the intellect is real. Such concepts both of objects and relations are given by the very nature of the intellect, are not abstracted from any use of the senses, and do not contain any form of sensuous knowledge as such. It is needful here to take note of the extreme ambiguity of the word abstract, which, in order not to confuse our disquisition on intellectual concepts, must be removed to begin with, for properly we should say abstract from some things, not abstract something. The former denotes that in a concept we give no attention to other matters in whatsoever way they may be connected with it; but the latter, that it is not given but in the concrete and so as to be separated from what it is conjoined with. Hence an intellectual concept abstracts from everything sensuous, it is not abstracted from sensuous things, and perhaps would be more correctly called abstracting than abstract. Intellectual concepts it is more cautious, therefore, to call pure ideas, and concepts given only empirically, abstract ideas.

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      From the foregoing it will be seen that it is badly to expound the sensuous to call it the more confusedly known, and the intellectual the distinctly known. For these are only logical distinctions and plainly do not touch the data underlying all logical comparison. The sensuous may be exceedingly distinct, while intellectual concepts are extremely confused. The former we observe in the prototype of sensuous knowledge, geometry; the latter, in the organon of all intellectual concepts, metaphysics. It is evident how much toil the latter is expending to dispel the fogs of confusion darkening the common intellect, though not always with the happy success of the former science. Nevertheless, any cognition retains the marks of its origin, the former, however distinct, being called by genesis sensuous; the latter, no matter how confused, remaining intellectual, as for instance, the moral concepts, which are known not experientially but by the pure intellect itself. The writer fears that Wolf by the distinction between the sensuous and the intellectual, which to him is only logical, checked, perhaps wholly, and to the great detriment of philosophy, that noble enterprise of antiquity of discussing the nature of phenomena and noumena, turning us from the investigation of these to what are frequently but logical trifles.

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      The primary philosophy containing the principles of the use of pure intellect is metaphysics. But there is a science propaedeutical to СКАЧАТЬ