Porphyry · Isag.

Isagoge

Εἰσαγωγή

Porphyry’s introduction to the five predicables — the standard late-antique gateway to the Categories and the whole Organon.

This edition presents the original Greek (Busse (CAG IV.1, 1887)) side by side with an English translation (O. F. Owen) — with click-to-parse morphology, dictionary entries, and exact page citation. 17 chapters.

See also: Aristotle’s Categories — the work it introduces

Read this work

• Owen Greek & English · O. F. Owen (Bohn, 1853)

Greek text & translations

Greek: A. Busse, ed. Porphyrii Isagoge et in Aristotelis Categorias commentarium. Commentaria in Aristotelem Graeca IV.1. Berlin: Reimer, 1887.
Translation: O. F. Owen (Bohn, 1853).
Full source and licence details are on the Texts & Licences page.

In print

Modern, copyright-protected translations and commentaries we can’t host here, for readers who want to go further:

• TranslationJonathan Barnes, Porphyry: Introduction (Clarendon Later Ancient Philosophers, Oxford University Press, 2003) Find in print →
• TranslationPaul Vincent Spade, trans., in Five Texts on the Mediaeval Problem of Universals (Hackett, 1994) Find in print →

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