Whether both clemency and meekness are virtues?

Objections

Objection 1 : It would seem that neither clemency nor meekness is a virtue. For no virtue is opposed to another virtue. Yet both of these are apparently opposed to severity, which is a virtue. Therefore neither clemency nor meekness is a virtue.
Objection 2 : Further, "Virtue is destroyed by excess and defect" [*Ethic. ii, 2]. But both clemency and meekness consist in a certain decrease; for clemency decreases punishment, and meekness decreases anger. Therefore neither clemency nor meekness is a virtue.
Objection 3 : Further, meekness or mildness is included (Mt. 5:4) among the beatitudes, and (Gal. 5:23) among the fruits. Now the virtues differ from the beatitudes and fruits. Therefore they are not comprised under virtue.