The Habit Of Virtue

Ἐλεημοσύναι καὶ πίστεις μὴ ἐκλιπέτωσάν σε ἄφαψαι δὲ αὐτὰς ἐπὶ σῷ τραχήλῳ καὶ εὑρήσεις χάριν Ἐν ἔξει τὰς ἀρετὰς ἔχων, μὴ ἐπιπολαίως καταῥῥᾳθυμῶν αὐτων, οὗτος ἔχει αὐτὰς γεγραμμένας ἐπὶ πλακὸς τῆς ἑαυτοῦ καρδίας, ἐπὶ τοῦ βάθους δηλαδὴ τῆς ἑαυτοῦ ψυχῆς, ἥτοι τῆς διηνεκοῦς ἐπιθυμήσεως, ἵνα ὁ ἐξ ἐναντίας μὴ παρατρέπῃ σε. Δίδυμος Αλεξανδρεύς, Εἰς Παροιμιας, Κεφ' Γ’ Source: Migne PG 39.1625b

Mercy and faith, let them not forsake you, hang them around your neck, and inscribe them on the tablets of your heart. 1 He who has the habit of the virtues does not easily become careless in the exercise of them, for he has them inscribed on the tablets of his own heart, certainly in the depths of his soul, for which he has continual attention, so that the adversary does not lead him astray. Didymus the Blind, On Proverbs, Chapter 3 1 Prov 3.3