Dualism describes the soul and body as separate

The argument

Dualism is the idea that the body and soul exist in separate planes, and that the soul does not necessarily rely on the body. The word "separate" is doing strict work here: the claim is not that the soul is a subtle part of the body or a product of it, but that the two belong to different orders of being and that the soul's existence is not contingent on the body's. To Plato, the most significant dualism supporter, every object had another metaphysical form in a different dimension that was the ideal, perfect version of that object. The dualism of soul and body is therefore not a special exception introduced to account for consciousness; it is one instance of a general metaphysics in which everything physical has a perfect counterpart elsewhere. Thus the object of the body and the perfect essence of the person, the soul, exist separately, in the same way that any particular thing stands apart from its ideal form. Several consequences follow for what the soul is taken to be. For Plato's theory of the soul and most dualists, the soul is eternal: it existed before the body and continues on after death, so its association with a particular body is an episode rather than its nature. It can reincarnate in other bodies when necessary, which only makes sense on the prior assumption that it was never identical with any of them. And it seeks to mold itself after the ideal soul and reach self-actualization, meaning it has a direction of its own that the body does not supply. In addition, the soul is viewed as the same as the conscience and the mind — so what dualism separates from the body is not an abstraction but the thinking, judging person.

Premises

Counter-arguments

The soul and body do not exist separately but are tied together and codependent. Without the soul, the body could not function and without the body, the soul would be useless. If the soul could exist on its own, we would have no reason for a body; the fact that we have bodies and depend on them so much is proof that body and soul exist as one.

Rejecting the premises

[Rejecting P1] This states the doctrine rather than supporting it. That body and soul occupy separate planes is the position at issue, so offering it as a premise leaves the separateness claim resting on itself. [Rejecting P2] The theory of Forms is a contested metaphysics imported whole, and it does not obviously deliver the conclusion. If the soul is the body's ideal essence, then it is the form of that body — a relation of dependence rather than the independence the argument needs. [Rejecting P3] Identifying the soul with mind and conscience works against separateness rather than for it. Thought, memory and character are observably altered by injury, illness, fatigue and chemistry, which is exactly the dependence on the body that the premise denies. [Rejecting C] The conclusion describes what dualists hold without answering the difficulty the position faces: if the two can exist apart, the argument owes an account of why a body is needed at all, and of why mental life tracks bodily condition so closely.