In the previous millennium a politician went to another country and met with his counterpart. As they were talking the first politician asked, "How do you tell which are the intelligent people, so you can get them to join your party and help you win votes?"
"Easy," said the second politician, "I pose them a riddle: Brothers and sisters, I have none. But that man's father is my father's son. Who is that man's father?"
"Oh," said the first one. "Who is he then?"
"It's me. If you're the one saying it, it's you."
So the first politician goes home, and tries it out on someone in his party, a Mr Peters who promptly replies, "That's easy. It's me"
So the first politician goes off, smug as a bug in a rug, and asks the riddle of the next two members of his party. Neither of them can follow the riddle, and finally ask in desperation, "Well,who is it then?"
"It's Mr Peters," the first politician says, triumphantly. "It was him all along!"
"I have supposed that he who buys a Method means to learn it." - Ferdinand Sor, Method for Guitar