He who knows and knows that he knows is a wise man. He who sees the calamity of other people finds his own calamity light. He who slings mud looses ground. He who stands for nothing, falls for anything. History is a selective interpretation of events designed to justify those currently in power.
Memory is the same thing on an individual scale.
History repeats itself, but each time the price goes up. Holding on to a hurt creates more hurt. Hollywood's a place where they'll pay you a thousand dollars for a kiss, and fifty cents for your soul. Honest criticism is hard to take, particularly from a relative, a friend, an acquaintance, or a stranger. Hope for the best, prepare for the worst.