Dag Hammarskjöld said this quote
“ Forgiveness breaks the chain of causality because he who 'forgives' you--out of love--takes upon himself the consequences of what you have done. Forgiveness, therefore, always entails a sacrifice.The price you must pay for your own liberation through another's sacrifice is that you in turn must be willing to liberate in the same way, irrespective of the consequences to yourself. ”