Once there was a donkey who always used to dream of doing great things. But, in fact, he only loved to eat and sleep.

     One day, he went out with his master for some work. While returning back, he began to dream that his father was a race horse. So, He began to run very fast.

     "Run, run faster," ordered the happy master. The donkey ran really fast, but at last, he gave up. He told his master that he was running very fast because he thought of himself as the son of a race horse. He forgot that actually he was the son of a donkey.