Philosophy / Natural Theology • Existence of God • Advanced
Argument from the Existence of Persons
Primary question: Can the existence of unified, self-aware, morally responsible persons be adequately explained by purely physical processes, or does personhood point beyond naturalism?
Argument map
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Common mistakes
Don't say
Treating this as a knockdown proof that naturalism logically cannot account for persons.
Instead
Present it as a comparative explanatory argument: theism accommodates personal explanation and unified subjectivity more naturally, without claiming naturalist accounts are strictly impossible.
Don't say
Ignoring serious non-eliminativist naturalist accounts like Baker's constitution view or Parfit's reductionism.
Instead
Engage them directly as the strongest naturalist alternatives, acknowledging their genuine successes before pressing the remaining explanatory gaps.
Don't say
Assuming eliminativism about the self is an easy target that can be dismissed with a one-line quip.
Instead
Present the strongest eliminativist self-defense (the useful-fiction move) before showing why critics like Strawson find it inadequate.
What would change my mind? — Christian position
A rigorous, widely accepted reductive explanation of intentionality, rational normativity, and subjective unity purely in physical terms would significantly weaken this argument's comparative appeal.
What would change my mind? — Skeptical position
A demonstration that theism itself cannot coherently explain how an infinite, non-physical divine mind grounds finite, embodied, temporally extended human persons would undercut the argument's claimed explanatory advantage.
Why does this matter?
The argument matters because questions about what a person fundamentally is bear directly on debates over free will, moral responsibility, the ethics of the beginning and end of life, and whether human dignity has any objective grounding beyond social convention, making the metaphysics of personhood one of the most practically consequential areas of philosophy of religion.
For further study
Primary and secondary sources on both sides of this question. Reading the strongest opposing case is part of the work, not a concession.
The Existence of God — Richard Swinburne
Develops the distinction between scientific and personal explanation central to this argument.
Reasons and Persons — Derek Parfit
The most influential reductionist treatment of personal identity, with candid acknowledgment of its revisionary implications.
Persons and Bodies: A Constitution View — Lynne Rudder Baker
A leading non-reductive, naturalist-compatible account of personhood centered on the first-person perspective.
Being No One: The Self-Model Theory of Subjectivity — Thomas Metzinger
A rigorous eliminativist argument that no unified self exists, only a phenomenal self-model.
Action and Purpose — Richard Taylor
Defends an agent-causal theory of action resisting reduction to event causation.
Selves: An Essay in Revisionary Metaphysics — Galen Strawson
Argues that rational assertion and reasoning presuppose a genuine subject, challenging eliminativist accounts of the self.