Maurice Maeterlinck said this quote

Death has come and atoned for all. I have no grievance against the soul of the man before me. Instinctively do I recognise that it soars high above the gravest faults and the cruellest wrongs (and how admirable and full of significance is this instinct!). If there linger still a regret within me, it is not that I am unable to inflict suffering in my turn, but it is perhaps that my love was not great enough and that my forgiveness has come too late. …