In my chilhdood my mother used tell me the story of thirsty crow very often. She told me that once there was a crow who was very thirsty and wandering here and there in search of water. He did not find water anywhere and start feeling weak. Suddenly he saw a jug with sone water near the tree. He got very happy but when he was about to drink water it was deep. He can't reach to it and got upset. He tried a lot to somehow drink it but everything he did was waste. Then he got an idea, he started picking stones and dropping it into that jug. As he was putting more and more stones water level was…