# De utilitate mathematicae 89

Theon Smyrnaeus, De utilitate mathematicae, Paragraph 89. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/theon-smyrnaeus/de-utilitate-mathematicae/89

ἔοικε δὲ ὁ Πλάτων μίαν οἴεσθαι συνοχὴν εἶναι μαθημάτων τὴν ἐκ τῆς ἀναλογίας. ἔν τε γὰρ τῷ Ἐπι- νομίῳ φησίν· ἅπαν διάγραμμα ἀριθμοῦ τε σύστημα καὶ ἁρμονίας σύστασιν ἂπεασαν τῆς τε τῶν ἄστρων περι- φορᾶς τὴν ἀναλογίαν οὖσαν μίαν ἀπάντων ἀναφανὴναι δεῖ τῷ κατὰ τρόπον μανθάνοντι· φανήσεται δέ, ἂν ἃ λέγομεν ὀρθῶς τις ἐμβλέπων μανθάνῃ· δεσμὸς γὰρ πεφυκὼς ἀπάντων εἶς ἀναφανήσεται.

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Theon Smyrnaeus, De utilitate mathematicae, ed. Eduardus Hiller. 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/tlg1724.tlg001.local001/.