Kantian Journal

2020 Vol. 39. №2

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The Universe of Science. The Architectonic Ideas of Science, Sciences and their Parts in Kant



I argue that Kant has developed a broad systematic account of the architectonic functionality of pure reason that can be used and advanced in contemporary contexts. Reason, in the narrow sense, is responsible for the picture of a well-ordered universe of science consisting of architectonic ideas of science, sciences and parts of sciences. In the first section (I), I show what Kant means by the architectonic ideas by explaining and interrelating the concepts of (a) the faculty of reason, (b) ideas (as principles), (c) method, and (d) sciences of reason. Thereafter (II), I think through his holistic understanding of science and scientific progress and suggest differentiating between four levels of use of architectonic ideas, drawing on the metaphor of a well-structured universe as imagined by Kant in his work on the Universal Natural History and Theory of the Heavens. I also claim that each possible idea of reason can be (apart from its primary function) additionally regarded as a fourth-level architectonic concept when explicitly conceived as an object of (e. g. philosophical) studies, i. e. from a mere methodological perspective. In the final section (III), I unveil the potential of Kant’s theory by pointing out how this architectonic methodological function of pure reason is tacitly used in Karl-Otto Apel’s contemporary philosophical research programme.


Apel, K.-O., 1988. Diskurs und Verantwortung. Das Problem des Übergangs zur postkonventionellen Moral. Frankfurt am Main: Suhrkamp.

Apel, K.-O., 1994a. Selected Essays, Volume 1: Towards a Transcendental Semiotics. Edited by E. Mendieta. New Jersey: Humanities Press.

Apel, K.-O., 1994b. From a Transcendental-Semiotic Point of View. Edited by M. Papastephanou. Manchester & New York: Manchester University Press.

Apel, K.-O., 1996. Selected Essays, Volume 2: Ethics and the Theory of Rationality. Edited by E. Mendieta. New Jersey: Humanities Press.

Bunte, M., 2016. Erkenntnis und Funktion. Zur Vollständigkeit der Urteilstafel und Einheit des kantischen Systems. Berlin & Boston: de Gruyter.

Förster, E., 2015. Transzendentalphilosophie. In: M. Willaschek, J. Stolzenberg, G. Mohr and S. Bacin, eds. 2015. Kant-Lexikon. Berlin & Boston: de Gruyter, pp. 2319-2325.

Friedman, M., 1992. Kant and the Exact Sciences. Cambridge: Harvard University Press.

Gava, G., 2014. Kant’s Definition of Science in the Architectonic of Pure Reason and the Essential Ends of Reason. In: Kant-Studien, 105(3), pp. 372-393.

Habermas, J., 2003. Truth and Justification. Translated by B. Fultner. Cambridge, Massachusetts: The MIT Press.

Kant, I., 1991. The Metaphysics of Morals. Translated by M. Gregor. Cambridge: Cambridge University Press.

Kant, I., 1992. The Jäsche Logic, in: Lectures on logic. Translated by J. M. Young. Cambridge: Cambridge University Press, pp. 521-640.

Kant, I., 1998. Critique of Pure Reason. Translated by P. Guyer and A. W. Wood. Cambridge: Cambridge University Press.

Kant, I., 2000. Critique of the Power of Judgement. Translated by P. Guyer and E. Matthews. Cambridge: Cambridge University Press.

Kant, I., 2002. Critique of Practical Reason. Translated by W. S. Pluhar. Introduction by S. Engstrom. Indianapolis & Cambridge: Hackett.

Kant, I., 2015. Universal Natural History and Theory of the Heavens or Essay on the Constitution and the Mechanical Origin of the Whole Universe According to Newtonian Principles. Translated by O. Reinhardt. In: E. Watkins, ed. 2015. Kant: Natural Science. Cambridge: Cambridge University Press, pp. 182-308.

Kitcher, P., 1983. Kant’s Philosophy of Science. In: P. French, T. Uehling and H. Wettstein, eds. 1983. Midwest Studies in Philosophy VIII: Contemporary Perspectives on the History of Philosophy. Minneapolis: University of Minnesota Press, pp. 387-408.

Klimmek, N.F., 2005. Kants System der transzendentalen Ideen. Berlin & New York: de Gruyter.

Lewin, M., 2018. Ist die theoretische Vernunft selbst eine Idee? Fichtes Umgang mit Kantischen Ideen um 1810. In: Fichte-Studien, 46, pp. 288-307.

Lewin, M., 2020. Reason, Ideas and Their Functions in Classical German Philosophy. Vestnik of Saint-Petersburg University. Philosophy and Conflict Studies, 36(1), pp. 4-23. (In Rus.)

Lewin, M., (in press) Das System der Ideen. Die Begründung der Vernunft und das Problem der unterschiedlichen Ansprüche. Freiburg & München: Alber.

Manchester, P., 2008. Kant’s Conception of Architectonic in its Philosophical Context. In: Kant-Studien, 99(2), pp. 187-207.

McRae, R., 1957. Kant’s Conception of the Unity of the Sciences. Philosophy and Phenomenological Research, 18, pp. 1-17.

Meer, R., 2019. Der transzendentale Grundsatz der Vernunft. Funktion und Struktur des Anhangs zur transzendentalen Dialektik der Kritik der reinen Vernunft. Berlin & Boston: de Gruyter.

Nuzzo, A., 1995. ‚Idee‘ bei Kant und Hegel. In: C. Fricke, P. König and T. Petersen, eds. 1995. Das Recht der Vernunft. Kant und Hegel über Denken, Erkennen und Handeln. Stuttgart: frommann-holzboog, pp. 81-120.

Pissis, J., 2012. Kants transzendentale Dialektik. Zu ihrer systematischen Bedeutung. Berlin & Boston: de Gruyter.

Sturm, T., 2009. Kant und die Wissenschaften vom Menschen. Paderborn: mentis.

Sturm, T., 2020. Kant on the Ends of the Sciences. Kant-Studien, 111(1), pp. 1-28.

Switzer, A., 2014. The Traditional Form of a Complete Science: Baumgarten’s Metaphysica in Kant’s Architectonic of Pure Reason. In: Philosophica, 44, pp. 149-164.

Watkins, E., ed. 2001. Kant and the Sciences. New York: Oxford University Press.

Willaschek, M., 2018. Kant on the Sources of Metaphysics. The Dialectic of Pure Reason. Cambridge: Cambridge University Press.