# Adversus mathematicos 19-6

Sextus Empiricus, Adversus mathematicos, <ΠΡΟΣ ΛΟΓΙΚΟΥΣ Β΄.>. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/sextus-empiricus/adversus-mathematicos/19-6

εἰ δὲ τὶ μὲν φαινόμενον ἀληθές ἐστι, τὶ δὲ ψεῦδος, ὀφείλομεν ἔχειν κριτήριον εἰς διάγνωσιν τοῦ τί ἐστιν ἀληθὲς φαινόμενον καὶ τί ψεῦδος. τοῦτ᾿ οὖν τὸ κριτήριον ἤτοι πᾶσι φαινόμενόν ἐστιν ἢ ἄδηλον. καὶ εἰ μὲν φαινόμενόν ἐστιν, ἐπεὶ οὐ πᾶν φαινόμενον ἀληθές ἐστι, δεήσει καὶ τοῦτο φαινόμενον καθεστὼς ἐξ ἄλλου φαινομένου δοκιμάζεσθαι, κἀκεῖνο ἐκ διαφέροντος, καὶ οὕτως εἰς ἄπειρον ἐκπίπτειν].

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Sextus Empiricus, Adversus mathematicos, ed. Hermann Mutschmann, Jürgen Mau. 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/tlg0544.tlg002.local001/.