In an interview in the Guardian, former president Bill Clinton relates how Nelson Mandela guided, counseled, and comforted him in the wake of the Monica Lewinsky scandal. According to Clinton, Mandela told him of how “he forgave his oppressors because if he didn’t they would have destroyed him.” Clinton recalls Mandela as having said, “They destroyed my marriage. They abused me physically and mentally. They could take everything except my mind and heart. Those things I would have to give away and I decided not to give them away.” And then Mandela added, “Neither should you.” Clinton took a leaf...