Aesop's fables generally communicate some kind of moral message, often through the depiction of animals, who speak or otherwise take on human characteristics.

The Bald Man and the Fly

There was once a Bald Man who sat down after work on a hot summer’s day. A Fly came up and kept buzzing about his bald pate, and stinging him from time to time. The Man aimed a blow at his little enemy, but acks palm came on his head instead; again the Fly tormented him, but this time the Man was wiser and said:‘You will only injure yourself if you take notice of despicable enemies.’