The Charger And The Miller
Horse, who had been used to carry his rider into battle, felt himself growing old and chose to work in a mill instead.
He now no longer found himself stepping out proudly to the beating of the drums, but was compelled to slave away all day grinding the corn.
Bewailing his hard lot, he said one day to the Miller, "Ah me! I was once a splendid war-horse, gaily caparisoned, and attended by a groom whose sole duty was to see to my wants. How different is my present condition! I wish I had never given up the battlefield for the mill."
The Miller replied with asperity, "It's no use your regretting the past. Fortune has many ups and downs: you must just take them as they come."