Once Nasreddin Hoca was hammering the nail at the end of his donkey's bridle, as he was going to a teahouse. Someone asked him: "Nasreddin Hoca, where is the center of the world." Nasreddin Hoca said," The center of the world is where I just hammered the nail to my donkey's bridle." Someone said, " I don't believe this." Nasreddin Hoca took a sip of his tea and said, " If you don't believe it, go measure it.
