A MULE, frolicsome from lack of work and from too much corn,
galloped about in a very extravagant manner, and said to himself:
"My father surely was a high-mettled racer, and I am his own
child in speed and spirit."  On the next day, being driven a long
journey, and feeling very wearied, he exclaimed in a disconsolate
tone:  "I must have made a mistake; my father, after all, could
have been only an ass."