The horse and the ass.

A fine house, proud of his rich trappings, met an ass on the highway. The ass was heavily laden and moved slowly out of the way.

“I can hardly resist kicking you, you stupid animal!” said the horse in a tone of great scorn. The ass held his peace and made only a silent prayer to the gods.

Not long afterwards, the horse became lame and was sent by his owner to the farm where the ass lived. The ass, seeing him drawing a dung cart, felt sorry for the horse, who in the days of his splendour had lost the friendship of one who could have helped him in bad times.

Revenge.
Resist revenge.
What goes around comes around.

The ass and the grasshopper.

An ass, hearing some grasshoppers chirping, fell in love with their voices. He wanted more than anything to be able to sing as well as they did, and so he asked the grasshoppers what kind of food they lived on to give them such beautiful voices. They replied, ‘The dew.’

The ass decided that he would live only on dew until he could sing as sweetly as a grasshopper. In a short time he had died of hunger.

One man’s meat is another man’s poison.

Want, wanting – learn, practice patience.
Remember:
What goes around comes around.