Story on a thirsty crow

Once there was a thirsty crow. He was flying on a hot day in search of water. He saw a jug on the roof of a house. He came down to the roof and reached the jug. He tried to drink the water from it. But the water level was low, and he could not drink. 

He wanted to drink the water in any possible way. The crow thought of a trick to drink the water. He flew away from the roof of the house. He looked for some small stones around the place. Soon he found some and brought them one by one from the ground to the roof. 

He went on dropping them into the jug. The water level in the jug rose up. Now the crow drank the water easily. The story teaches us that God helps those who help themselves.'