Once upon a time there was an old man. He worked hard all his life, buying and selling things. Its result was that he had earned a lot of money and had become rich. He had two sons. When he became old, he had a problem-whom he should give his money. He wanted to give it to the son who proved to be wiser. To solve this problem, he gave each of them one rupee. Then he asked them to buy a thing which may fill the whole house with it. The first son bought a careful of hay. But it was not enough to cover even the floor. The second son bought many candles for one rupee. He put two or three candles in each room and lit them. At once the whole house was filled with light. The father was pleased with the second son. He said he had shown true wisdom. So he gave all the money to his second son.