Hate no one; for hatred is a plague-spot that spreads its virus and kills at last. If indulged, it masters us; brings suffering upon suffering to its possessor, throughâout time and beyond the grave. If you have been badly wronged, forgive and forget: God will recompense this wrong, and punish, more severely than you could, him who has striven to injure you. Never return evil for evil; and, above all, do not fancy that you have been wronged when you have not been.
(Miscellaneous Writings – Love Your Enemies p12 by Mary Baker Eddy)

