κοινὸν τύχη, γνώμη δὲ τῶν κεκτημένων → good luck is anyone's, judgment belongs only to those who possess it
See mercy.
gentleness: P. πραότης, ἡ, φιλανθρωπία, ἡ, ἐπιείκεια, ἡ, V. πρευμένεια, ἡ.