# Optica νβ΄.

Euclid, Optica, νβ΄.. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/euclid/optica/%CE%BD%CE%B2%CE%84.

Ἐάν τινων φερομένων διαφαίνηταί τι μὴ φερόμε νον, δόξει τὸ μὴ φερόμενον εἰς τὰ ὄπισθεν φέρεσθα; φερέσθω γὰρ τὰ Β, ∠, μενέτω δὲ τὸ Γ, καὶ ἀπ τοῦ ὄμματος προσπιπτέτωσαν ἀκτῖνες αἱ ΖΒ, ΖΓ Ζ οὐκοῦν τὸ μὲν Β φερόμενον ἔγγιον ἔσται τοῦ Γ, δὲ ∠ ἀποχωροῦν πορρώτερον· εἰς τοὐναντίον ἄρ φέρεσθαι δόξει τὸ Γ.

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Euclid, Optica, ed. Johan Ludvig Heiberg, Heinrich Menge. 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/tlg1799.tlg009.local001/.