One day a nobleman caught a nightingale and wanted to put it in a cage. But the bird spoke to him, “Let me go and I will give you three pieces of good advice. It may be of use to you some day.” The nobleman agreed to let it go.The nightingale gave him three pieces of advice, “Never be sorry for something that cannot be brought back, my lord. And never trust idle words.” The nobleman heard the advice and let the nightingale go. The bird flew out and said, “Too bad; you let me go. If only you knew about my treasure.
I have a very huge expensive gem under my wing. If you had taken it, you would have become even richer. When the nobleman heard that he began to regret letting bitterly about the bird go.The nightingale turned towards him and said, “Now I know, master, that you are a greedy and foolish man. You were sorry for something that cannot be brought back. And you believed my idle words. Look at what a little bird I am. How could I be hiding a large gem under my wing?” And after these words the bird flew away.