# Musica 26

Claudius Ptolemaeus, Musica, Paragraph 26. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/claudius-ptolemaeus/musica/26

Τέσσαρά εἰσι πολυθρύλλητα αἴτία· ὑλικὸν ποιητικὸν εἰδικὸν τελικόν. διότι τὸ εἶδος καὶ τὸν ὁρισμὸν καλεῖ, πᾶσα γὰρ ἀπόδειξις εἰς τὸ διότι ἀνάγεται.

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Claudius Ptolemaeus, Musica, ed. Karl von Jan. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg0363.tlg011.local001/.