Whether clemency and meekness are the greatest virtues?

Objections

Objection 1 : It would seem that clemency and meekness are the greatest virtues. For virtue is deserving of praise chiefly because it directs man to happiness that consists in the knowledge of God. Now meekness above all directs man to the knowledge of God: for it is written (James 1:21): "With meekness receive the ingrafted word," and (Ecclus. 5:13): "Be meek to hear the word" of God. Again, Dionysius says (Ep. viii ad Demophil.) that "Moses was deemed worthy of the Divine apparition on account of his great meekness." Therefore meekness is the greatest of virtues.
Objection 2 : Further, seemingly a virtue is all the greater according as it is more acceptable to God and men. Now meekness would appear to be most acceptable to God. For it is written (Ecclus. 1:34,35): "That which is agreeable" to God is "faith and meekness"; wherefore Christ expressly invites us to be meek like unto Himself (Mt. 11:29), where He says: "Learn of Me, because I am meek and humble of heart"; and Hilary declares [*Comment. in Matth. iv, 3] that "Christ dwells in us by our meekness of soul." Again, it is most acceptable to men; wherefore it is written (Ecclus. 3:19): "My son, do thy works in meekness, and thou shalt be beloved above the glory of men": for which reason it is also declared (Prov. 20:28) that the King's "throne is strengthened by clemency." Therefore meekness and clemency are the greatest of virtues.
Objection 3 : Further, Augustine says (De Serm. Dom. in Monte i, 2) that "the meek are they who yield to reproaches, and resist not evil, but overcome evil by good." Now this seems to pertain to mercy or piety which would seem to be the greatest of virtues: because a gloss of Ambrose [*Hilary the deacon] on 1 Tim. 4:8, "Piety [Douay: 'Godliness'] is profitable to all things," observes that "piety is the sum total of the Christian religion." Therefore meekness and clemency are the greatest virtues.