Pope Francis
Fratelli Tutti §250
Fratelli Tutti: On Fraternity and Social Friendship
250 Forgiving does not mean forgetting. Or better, in the face of a reality that can in no way be denied, relativized or concealed, forgiveness is still possible. In the face of an action that can never be tolerated, justified or excused, we can still forgive. In the face of something that cannot be forgotten for any reason, we can still forgive. Free and heartfelt forgiveness is something noble, a reflection of God’s own infinite ability to forgive. If forgiveness is gratuitous, then it can be shown even to someone who resists repentance and is unable to beg pardon.
Source: Fratelli Tutti (Vatican.va)