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Thomas Aquinas

Thirteenth-century theologian linking incorporeality, simplicity and immutability through philosophical premises.

Positions in specific texts, not a consensus of early or later Christianity; no portraits depicted
Positions in specific texts, not a consensus of early or later Christianity; no portraits depictedIL Archive · original diagram · CC BYImage source

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Edition
2

Text

Summa I.3 rejects body, composition of parts and a divine essenceOusia — essenceGreek term for essence or nature, with meanings changing between authors.Glossary · Click to read the explanation–existence distinction. Simplicity is metaphysical, not ease or absence of actions. [1]

I.9 argues from pure actuality, simplicity and perfection to immutability. His arguments do not represent every Christian, Islamic or Jewish school. [2]

References and notes

  1. Thomas Aquinas, Summa Theologiae I, question 3, articles 1, 4, 7 No body; essence/existence and composition; selected passages. Return to the text ↑
  2. Aquinas, Summa Theologiae I, question 9, article 1 Pure actuality, simplicity, perfection and figurative movement in effects. Return to the text ↑

Research history

Substantive changes are retained here. Minor copy edits remain in the internal operational log.

  1. Edition 2 · 11 October 2026 · editor:aladmin

    Substantive record update

    Read this revision in its original language (Arabic)

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IL Archive, «Thomas Aquinas», Edition 2, https://ilarchive.com/en/people/thomas-aquinas