Propaedeutic.[315]—That the Critique is only propaedeutic to a System of pure reason was later denied by Kant in the following emphatic terms:

“I must here observe that I cannot understand the attempt to ascribe to me the view that I have sought to supply only a Propaedeutic to transcendental philosophy, not the System of this philosophy. Such a view could never have entered my thoughts, for I have myself praised the systematic completeness (das vollendete Ganze) of the pure philosophy in the Critique of Pure Reason as the best mark of its truth.”[316]

Kant thus finally, after much vacillation in his use of the terms, came to the conclusion that Critique, Transcendental Philosophy, and System all coincide. Meantime he has forgotten his own previous and conflicting utterances on this point.

As regards speculation negative only.[317]—“Speculation” here signifies the theoretical, as opposed to the practical.[318] The qualifying phrase is in line with other passages of the second edition, in which it is emphasised that the conclusions of the Critique are positive in their practical (moral) bearing.[319]

Transcendentaltranscendent.[320]—Kant was the first to distinguish between these two terms. In the scholastic period, in which they first appear, they were exactly synonymous, the term transcendent being the more usual. The verb, to transcend, appears in Augustine in its widest metaphysical sense. “Transcende et te ipsum.” “Cuncta corpora transcenderunt [Platonici] quaerentes Deum; omnem animam mutabilesque omnes spiritus transcenderunt quaerentes summum Deum.”[321] The first employment of the term in a more specific or technical sense occurs in a treatise, De natura generis, falsely ascribed to Thomas Aquinas. In this treatise ens, res, aliquid, unum, bonum, verum are entitled transcendentia. To understand the meaning in which the word is here used, we have, it would seem,[322] to take account of the influence exercised upon Aquinas by a mystical work of Arabian origin, entitled De causis. It contained reference to the Neo-Platonic distinction between the Aristotelian categories, which the Neo-Platonists regarded as being derivative, and the more universal concepts, ens, unum, verum, bonum. To these latter concepts Aquinas gave a theological application. Ens pertains to essence, unum to the person of the Father, verum to the person of the Son, bonum to the person of the Holy Ghost. In the De natura generis the number of these supreme concepts is increased to six by the addition of res and aliquid, and as just stated the title transcendentia is also now applied for the first time. In this meaning the term transcendent and its synonym transcendental are of frequent occurrence in Scholastic writings. The transcendentia or transcendentalia are those concepts which so transcend the categories as to be themselves predicable of the categories. They are the “termini vel proprietates rebus omnibus cuiusque generis convenientes.” Thus Duns Scotus speaks of ens as the highest of the “transcendental” concepts. The term also occurs in a more or less similar sense in the writings of Campanella, Giordano Bruno, Francis Bacon, and Spinoza. The last named gives a psychological explanation of the “termini Transcendentales ... ut Ens, Res, Aliquid” as standing for ideas that are in the highest degree confused owing to the multiplicity of the images which have neutralised one another in the process of their generation.[323] Berkeley also speaks of the “transcendental maxims” which lie outside the field of mathematical enquiry, but which influence all the particular sciences.[324] Evidently the term has become generalised beyond its stricter scholastic meaning. Lambert employs transcendent in an even looser sense to signify concepts which represent what is common to both the corporeal and the intellectual world.[325] We may, indeed, assert that in Kant’s time the terms transcendent and transcendental, while still remaining synonymous, and though used on the lines of their original Scholastic connotation, had lost all definiteness of meaning and all usefulness of application. Kant took advantage of this situation to distinguish sharply between them, and to impose upon each a meaning suitable to his new Critical teaching.

“Transcendental” is primarily employed by Kant as a name for a certain kind of knowledge. Transcendental knowledge is knowledge not of objects, but of the nature and conditions of our a priori cognition of them. In other words, a priori knowledge must not be asserted, simply because it is a priori, to be transcendental; this title applies only to such knowledge as constitutes a theory or science of the a priori.[326] Transcendental knowledge and transcendental philosophy must therefore be taken as coinciding; and as thus coincident, they signify the science of the possibility, nature, and limits of a priori knowledge. The term similarly applies to the subdivisions of the Critique. The Aesthetic is transcendental in that it establishes the a priori character of the forms of sensibility; the Analytic in that it determines the a priori principles of understanding, and the part which they play in the constitution of knowledge; the Dialectic in that it defines and limits the a priori Ideas of Reason, to the perverting power of which all false metaphysics is due. That this is the primary and fundamental meaning common to the various uses of the term is constantly overlooked by Max Müller. Thus in A 15 = B 30 he translates transcendentale Sinnenlehre “doctrine of transcendental sense” instead of as “transcendental doctrine of sense.” In transforming transcendentale Elementarlehre into “elements of transcendentalism” he avoids the above error, but only by inventing a word which has no place in Kant’s own terminology.

But later in the Critique Kant employs the term transcendental in a second sense, namely, to denote the a priori factors in knowledge. All representations which are a priori and yet are applicable to objects are transcendental. The term is then defined through its distinction from the empirical on the one hand, and from the transcendent on the other. An intuition or conception is transcendental when it originates in pure reason, and yet at the same time goes to constitute an a priori knowledge of objects. The contrast between the transcendental and the transcendent, as similarly determined upon by Kant, is equally fundamental, but is of quite different character. That is transcendent which lies entirely beyond experience; whereas the transcendental signifies those a priori elements which underlie experience as its necessary conditions. The transcendent is always unknowable. The transcendental is that which by conditioning experience renders all knowledge, whether a priori or empirical, possible. The direct opposite of the transcendent is the immanent, which as such includes both the transcendental and the empirical. Thus while Kant employs the term transcendental in a very special sense which he has himself arbitrarily determined, he returns to the original etymological meaning of the term transcendent. It gains a specifically Critical meaning only through being used to expound the doctrine that all knowledge is limited to sense-experience. The attempt to find some similar etymological justification for Kant’s use of the term transcendental has led Schopenhauer and Kuno Fischer to assert that Kant entitles his philosophy transcendental because it transcends both the dogmatism and the scepticism of all previous systems![327] Another attempt has been made by Stirling[328] and Watson,[329] who assert, at least by implication, that the transcendental is a species of the transcendent, in that while the latter transcends the scope of experience, the former transcends its sense-content. Kant himself, however, nowhere attempts to justify his use of the term by any such argument.

A third meaning of the term transcendental arises through its extension from the a priori intuitions and concepts to the processes and faculties to which they are supposed to be due. Thus Kant speaks of the transcendental syntheses of apprehension, reproduction, and recognition, and of the transcendental faculties of imagination and understanding. In this sense the transcendental becomes a title for the conditions which render experience possible. And inasmuch as processes and faculties can hardly be entitled a priori, Kant has in this third application of the term departed still further from his first definition of it.[330]

The distinction between the transcendental and the transcendent may be illustrated by reference to the Ideas of reason. Regarded as regulative only, i.e. merely as ideals which inspire the understanding in the pursuit of knowledge, they are transcendental. Interpreted as constitutive, i.e. as representing absolute realities, they are transcendent. Yet, despite the fundamental character of this distinction, so careless is Kant in the use of his technical terms that he also employs transcendental as exactly equivalent in meaning to transcendent. This is of constant occurrence, but only two instances need here be cited. In the important phrase “transcendental ideality of space and time” the term transcendental is used in place of the term transcendent. For what Kant is asserting is that judged from a transcendent point of view, i.e. from the point of view of the thing in itself, space is only subjectively real.[331] The phrase is indeed easily capable of the orthodox interpretation, but, as the context clearly shows, that is not the way in which it is actually being used by Kant. Another equally surprising example is to be found in the title “transcendental dialectic.” Though it is defined in A 63-4 = B 88 in correct fashion, in A 297 = B 354 and A 308-9 = B 365-6 it is interpreted as treating of the illusion involved in transcendent judgments, and so virtually as meaning transcendent dialectic.[332]