Mulla Nasruddin once called on Sultan of Al-rifi who once had a great collection of precious stones. As he grew older he ended with one big diamond that he stuck on his turban. When Mulla asked the old king how it fared the king said,” I am in danger of losing my head.” With a sigh he added, “I hate to lose it for a stone.”
Mulla could appreciate his problem. “I too suffer from the same problem.” The king asked for details and he said, “Much as I tried it simply would not. Stone in my kidney each day grows.”