ἄμεινον γὰρ ἑαυτῷ φυλάττειν τὴν ἐλευθερίαν τοῦ ἑτέρων ἀφαιρεῖσθαι → for it is better to guard one's own freedom than to deprive another of his
adverb of a compound of μακρός and θυμός; with long (enduring) temper, i.e. leniently: patiently.