Section 41
Original German
§ 41.
Die Unterscheidung der Ideen, d. i. der reinen Vernunftbegriffe, von den Kategorien oder reinen Verstandesbegriffen, als Erkenntnissen von ganz verschiedener Art, Ursprung und Gebrauch, ist ein so wichtiges Stück zur Grundlegung einer Wissenschaft, welche das System aller dieser Erkenntnisse a priori enthalten soll, daß ohne eine solche Absonderung Metaphysik schlechterdings unmöglich oder höchstens ein regelloser, stümperhafter Versuch ist, ohne Kenntniß der Materialien, womit man sich beschäftigt, und ihrer Tauglichkeit zu dieser oder jener Absicht ein Kartengebäude zusammenzuflicken. Wenn Kritik der reinen Vernunft auch nur das allein geleistet hätte, diesen Unterschied zuerst vor Augen zu legen, so hätte sie dadurch schon mehr zur Aufklärung unseres Begriffs und der Leitung der Nachforschung im Felde der Metaphysik beigetragen, als alle fruchtlose Bemühungen den transscendenten Aufgaben der reinen Vernunft ein Gnüge zu thun, die man von je her unternommen hat, ohne jemals zu wähnen, daß man sich in einem ganz andern Felde befände als dem des Verstandes und daher Verstandes- und Vernunftbegriffe, gleich als ob sie von einerlei Art wären, in einem Striche hernannte.
Musean translation
Mouseia’s complete machine-assisted Musean translation, made directly from the complete German of the Prolegomena (AA IV 253–383, all §§1–60 and the Appendix), for fidelity, the steps of Kant’s argument, clarity and structure.
§ 41.
Distinguishing ideas, that is, pure concepts of reason, from the categories, or pure concepts of the understanding, as cognitions of entirely different kinds, origins, and uses, is so important to laying the foundations of a science meant to contain the system of all these a priori cognitions that, without such a separation, metaphysics is simply impossible, or at most a disorderly, bungling attempt to patch together a house of cards without knowing the materials one is handling or their fitness for this or that purpose. Even if the Critique of Pure Reason had accomplished nothing but first bringing this distinction to light, it would already have contributed more to clarifying our concept and guiding inquiry in the field of metaphysics than all the fruitless efforts ever undertaken to satisfy the transcendent problems of pure reason. Those efforts never so much as suspected that they stood in an entirely different field from that of the understanding, and therefore named concepts of the understanding and concepts of reason in one breath, as though they were of the same kind.
Plain English translation
Mouseia’s complete Plain English edition, made independently and directly from the same complete German text.
§ 41.
Ideas, or pure concepts of reason, must be distinguished from categories, or pure concepts of the understanding. They are kinds of cognition with entirely different origins and uses. This distinction is crucial to laying the foundation of a science meant to contain the system of all these kinds of a priori cognition. Without it, metaphysics is simply impossible. At best, it is an unmethodical, amateur attempt to patch together a house of cards, without knowing the materials being used or their fitness for one purpose or another. Even if the Critique of Pure Reason had done nothing but bring this distinction to light for the first time, it would already have done more to clarify our concept and guide inquiry in metaphysics than all the fruitless efforts ever made to satisfy pure reason's transcendent demands. Those efforts never even suspected that they were in a field entirely different from that of the understanding. They therefore listed concepts of the understanding and concepts of reason together, as if they were all of one kind.
About this section
Section 41 is part of Prolegomena to Any Future Metaphysics by Immanuel Kant. This page sets the German original beside 2 direct-source translations, so any line can be checked against the source. It is section 49 of 72 in the work, which is kept in the European tradition.
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