Once, there was a young mule. One day, he started galloping in a field. He galloped at such a good speed that he thought, ‘I must be a horse because I have a very good speed!’ The more he thought about it, the more excited he got. He thought, ‘If I can gallop so fast, then surely, I must be the son of an excellent racer. I am sure my ancestors must have been good racers.’ The next day, a cart full of load was attached to the mule. The mule went on a long journey. As the mule was not used to hard work, he became very tired. Disappointed with himself, he sai d, “I am sure I am not a horse and neither were my ancestors. Only a mule could be so tired doing this much work.”