The agnosticism of Kant regarding the noumenon

I’ve never read anyone so difficult to understand as Kant, but his importance serves as a goad to persist… If anyone reading this is a Kantian or a Kant scholar, please feel free to correct me if what I’m saying here is either inaccurate or contested. Anyway, as I quoted in a previous post, Etienne Gilson writes, “Today our only choice is not Kant or Descartes; it is rather Kant or Thomas Aquinas. All the other positions are but halfway houses on the roads which lead either to absolute religious agnosticism or to the natural theology of Christian metaphysics” (God and Philosophy p. 114). In §32 of the Prolegomena, Kant refers to “special beings of the understanding (noumena), which are supposed to constitute an intelligible world.” He grants the possibility of the existence of such beings “but only with the enforcement of this rule that admits of no exception: that we neither know nor can know anything at all determinate about these pure beings of the understanding, because our pure concepts of the understanding as well as our pure intuitions extend to nothing but objects of possible experience” (i.e., extend to the realms of Newtonian physics). Here is Kant’s agnosticism regarding intellectual beings. Kant’s interest is not that we be conformed to the totality of what is real as much as we are able (in conduct and thought) but that we ourselves process our intuitions rendering them into experience which is in accordance with the laws of Newtonian physics (the principles of which reside in us a priori). I would like to contrast what Kant regards as being our own a priori understanding which is able to order our intuitions as coherent experience with Aquinas’ notion (h/t Aristotle) of the “agent intellect” (i.e., the proper active principle). The agent intellect renders intelligible all sensory experience received by the “possible intellect” (i.e., the passive principle). Aquinas’ cognitive theory has the interaction between active and passive principles as foundational to all reality. In Kant there is also an interaction between active and passive principles, but where the natural theology of Aquinas gives us the ability to say something “positive” about the objects external to us, in Kant we have external to us something real but we know not what (“we are not discussing the origin of experience, but what lies in experience” §21a). Kant’s agnosticism regarding “special beings” extends to the very origins of our intuition. While they are ‘real’ we can’t know them. So, there is an activity of some sort, as without it our intuitions receive nothing whatsoever, but his philosophical commitments don’t allow him to express anything confident or positive about what constitutes that activity.

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