" Catherine [of Siena] compares justice combined with mercy with a precious pearl. Justice without mercy would be dark, cruel, more like injustice than justice. But mercy without justice would be like salve on a sore which should be cleansed with the red-hot iron; if the salve is applied before the wound is cleansed it only makes it smart, and does not heal it "

― Sigrid Undset , Catherine of Siena