Mercy and Friendship

Οὔτε λύκος προβάτῳ ποτὲ φιλικῶς προσωμίλησεν, οὔτε ἄσπλαγχνος καὶ ἄπληστος λογισμὸς τῇ ἀγαθοθελείᾳ φιλιοῦσθαι ἀνέχεται. Ἅγιος Νειλος, Βιβλιον Πρῶτον, Ἐπιστολὴ ΣϟΗ' Εὐηθιῳ Τριβουνῳ.

As the wolf will never enter into a state of friendship with the lamb, nor will he who is merciless, ceaseless in his calculations, come into friendship with a good will. Saint Nilus of Sinai, Book 1, Letter 298, To Euethius the Tribune