Forgive, but don't forget?

Someone famous once said, "Forgive them, but never forget their names." I don't believe that sentiment represents the teachings of Jesus, or his example.
Aluizio Vidal, who, is the pastor of Igreja Presbiteriana Gileade, in Porto Velho, was teaching about forgiveness, and he read the most famous part of the Bible about this subject, which is Jesus's discussion of the topic in Matthew 18:21-35. Really, you should read it. If you call yourself a Christian, then this is what Jesus said to do. Just do it.