Goodness is to do good to the deserving and love the good and hate the wicked, and not to be eager to inflict punishment or take vengeance, but to be gracious and kindly and forgiving.
It is not "forgive and forget" as if nothing wrong had ever happened, but "forgive and go forward," building on the mistakes of the past and the energy generated by reconciliation to create a new future.
I thoroughly disapprove of duels. If a man should challenge me, I would take him kindly and forgivingly by the hand and lead him to a quiet place and kill him.
In forgiving, people are not being asked to forget. On the contrary, it is important to remember, so that we should not let such atrocities happen again. Forgiveness does not mean condoning what has been done. It means taking what happened seriously...drawing out the sting in the memory that threatens our entire existence.