Be just: and mete to crime its condign pain;
Nor use the murd’rous lash where suits the cane.
Adsit Regula, peccatis quæ pœnas irroget æquas
Ne scutica dignum horribili sectere flagello.
Ne scutica dignum horribili sectere flagello.
Original text (Latin)
Notes from Wikiquote
S. 1, 3, 117.