Youth And Pleasure

Τὴν λοιμικὴν συνδιαγωγὴν τῶν φιληδόνων σου νεωτέρων ἀποστρέφου, καὶ φεῦγε πάσῃ δυνάμει· καὶ γὰρ καὶ τῷ ἔργῳ, καὶ ταῖς μεμολυσμέναις ὁμιλίαις, τὰς ψυχὰς διαφθείρει τῶν ἀγαπώντων αὐτούς. Ἅγιος Νειλος, Βιβλίον Πρῶτον, Ἐπιστολή ΜΕ' Λικιννιῳ Νεωτερῳ Source: Migne PG 79.104b

Turn from the pestilential habit of your youth giving itself to pleasures, and flee it with all your strength, for both in the deed and in the association with those inclined the souls of lovers are ruined. Saint Nilus of Sinai, Book 1, Letter 45, to the youth Licinnius