Piety And Works

Ὅταν ὁ νοῦς τοῦ τῆς εὐσεβείας σκοποῦ ἐπιλάθηται, τότε τὸ προφανὲς ἔργον τῆς ἀρετῆς ἀνόνητον γίνεται. Ἅγιος Μάρκος ὁ Ἐρημίτης, Περὶ Τῶν Οἰομένων Ἐξ Ἔργων Δικαιοῦσθαι Source:  Migne PG 65 937

When the mind neglects to give attention to piety then evidently the work of virtue becomes worthless. Saint Mark The Ascetic, from On Those Who Think Themselves Justified By Works.