What’s Transcendental Idealism?(Kantian Metaphysics)

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Something foundational to many of Immanuel Kant’s (1724-1804) ideas is what is referred to as the doctrine of “transcendental idealism.”

As a doctrine, it emphasizes a distinction between what subjects (human beings) can experience (the natural, observable world) and what subjects cannot (“supersensible” objects such as God and the soul). In its most simple form it says that subjects have cognition of appearances but not of things in themselves (1). By “thing in itself,” Kant meant a thing standing outside any relation to our cognitive powers, but still a thing that one receives a representation of.

Given Kant’s influence, interpreters have interpreted his doctrine in different ways. One such interpretation is in the way of radical skepticism in that Kant seemed to reduce all objects of human knowledge to representations in the human minds. In essence, this would seem to deny that humans have the capacity to know anything genuine about reality. Other interpreters haven’t been that skeptical and have deduced that Kant didn’t deny the existence of objects external to the human mind. In fact, they suggest that Kant’s doctrine assumes that real things must exist external to the mind so that the human mind can receive representations of these things.

Further, given Kant’s conflicting manner of expressing and formulating his doctrine of transcendental idealism, two major interpretations have been proposed from his work (2). One of these is the causality interpretation based on the idea that Kant often distinguished appearances from things in themselves. Kant stated that “Objects in themselves are not known to us at all, and what we call external objects are nothing but representations of our sensibility, whose form is space, but whose true correlate, i.e. the thing in itself, is not and cannot be recognized through them” (3). On the causality view, things existing in themselves are distinct from their appearances. Appearances, denoting subjective mental states the things cause within the human mind, have no existence but are only representations within the mind. As such, the relationship between things in themselves and appearances is a causal relation. Appearances are subjective states within the human mind, that are caused by things in themselves outside of the human mind. Sometimes this view is referred to as the “two worlds” interpretation because it posits that appearances and things in themselves constitute two different worlds, two separate realms of distinct entities.

The other interpretation of Kant’s doctrine of transcendental idealism is the identity interpretation (4). Here there isn’t a distinguishing between two separate entities (appearances and things in themselves), but rather between the same entity as it appears (considered in relation to our cognitive faculties) and as it exists in itself (considered apart from that relation). The basic premise of this interpretation is that every appearance is identical to a thing in itself, and the distinction is not between two different entities but two ways to thinking about or referring to the same entity. Thus, appearances are not merely subjective entities or states of our minds because they have an existence in themselves.

Both interpretations agree that real things exist, that these things cause representations in us, that objects are given to us through the senses, and that sensing and thinking are subject to conditions that make synthetic a priori cognition possible.

References

1. Wood, A. 2004. Kant. p. 63.

2. Wood, A. 2004. Ibid. p. 64.

3. Kant, I. 1781. Critique of Pure Reason. Section 1: Transcendental Doctrine of Elements

4. Wood, A. 2004. Ibid. p. 65.

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5 responses to “What’s Transcendental Idealism?(Kantian Metaphysics)

  1. Pingback: The Poverty of Human Reason and Apologetics, and My Dualistic View of Human Reason (Personal Reflection) | Bishop's Encyclopedia of Religion, Society and Philosophy·

  2. Pingback: The Subject-Object Distinction and Historical Monism (Personal Reflection) | Bishop's Encyclopedia of Religion, Society and Philosophy·

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