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Open inquiry12 min4 historical perspectives

What is real, and what remains through change?

Follow a repaired object, melting ice, and a copied digital object to compare four metaphysical accounts of existence, dependence, and persistence.

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  1. 1Early fifth century BCEParmenides — Does speaking of change require speaking of what is not?

    Parmenides · On Nature

    When we speak of coming-to-be and passing-away, are we really thinking what is not?

    Parmenides' poem divides routes of inquiry and presses radical constraints on what can be thought and spoken of as being.

    Source and exact locator

    The text is a Korean-English summary of the source, not a direct quotation.

    • Parmenides

      Stanford Encyclopedia of Philosophy

      Locator: §2 Overview of Parmenides’ Poem; §3.2 The Way of Conviction

      Open source

    The slogan that he simply declares all change illusory is contested; contemporary scholarship offers competing monist and modal interpretations.

    Source and exact locator

    The text is a Korean-English summary of the source, not a direct quotation.

    • Parmenides

      Stanford Encyclopedia of Philosophy

      Locator: §3 Some Main Types of Interpretation; §3.8 What Is and Cannot Not Be

      Open source
    1. On Nature poses the conditions of being and change in poetic form.

      Early fifth century BCE

  2. 2Fourth century BCEAristotle — Matter and form, potentiality and actuality

    Aristotle · Metaphysics

    Can the move from potentiality to actuality explain how something changes while remaining itself?

    Aristotle distinguishes the matter composing an individual substance from the form by which that matter constitutes a functioning whole.

    Source and exact locator

    The text is a Korean-English summary of the source, not a direct quotation.

    • Aristotle's Metaphysics

      Stanford Encyclopedia of Philosophy

      Locator: §12 Actuality and Potentiality, first paragraph

      Open source

    He extends the distinction between potentiality (dunamis) and actuality or activity (energeia) to explain change across time.

    Source and exact locator

    The text is a Korean-English summary of the source, not a direct quotation.

    • Aristotle's Metaphysics

      Stanford Encyclopedia of Philosophy

      Locator: §12 Actuality and Potentiality; Metaphysics Θ.1

      Open source
    1. Work associated with the Lyceum period systematizes a vocabulary of substance and change.

      Around 335 BCE · Athens · 주요활동

  3. 3Second to third century CENāgārjuna — Emptiness is dependence, not disappearance

    Nāgārjuna · Fundamental Verses on the Middle Way

    If nothing has an independent essence, are things unreal or real only through relations?

    In Nāgārjuna's Madhyamaka, emptiness means that phenomena lack an independent, unchanging intrinsic nature (svabhāva).

    Source and exact locator

    The text is a Korean-English summary of the source, not a direct quotation.

    • Nāgārjuna

      Stanford Encyclopedia of Philosophy

      Locator: §2.1 Svabhāva and §2.2 Emptiness

      Open source

    Emptiness is read together with dependent origination, and emptiness itself must not be reified as another ultimate substance.

    Source and exact locator

    The text is a Korean-English summary of the source, not a direct quotation.

    • Nāgārjuna

      Stanford Encyclopedia of Philosophy

      Locator: §2.2 Emptiness; §3 The Two Truths

      Open source
    1. The Fundamental Verses re-examine intrinsic nature and causation through dependence and emptiness.

      Around the second or third century

  4. 41781Kant — The experienced world and things in themselves

    Immanuel Kant · Critique of Pure Reason

    If space and time are forms of our experience, are they a veil over reality or the conditions that make knowledge possible?

    Kant treats space and time as forms of human sensible intuition rather than properties of things in themselves, calling spatiotemporal objects appearances.

    Source and exact locator

    The text is a Korean-English summary of the source, not a direct quotation.

    • Kant's Transcendental Idealism

      Stanford Encyclopedia of Philosophy

      Locator: Introduction; §1 Appearances and Things in Themselves

      Open source

    Whether appearances and things in themselves are two kinds of object or two standpoints on one object remains a central unresolved interpretive dispute.

    Source and exact locator

    The text is a Korean-English summary of the source, not a direct quotation.

    • Kant's Transcendental Idealism

      Stanford Encyclopedia of Philosophy

      Locator: §4 The Dual Aspect View; §5 One Object or Two?

      Open source
    1. The first Critique redraws the limits of reality as it can be experienced.

      1781