The Ass and the Grasshopper_英语寓言故事

an ass having heard some grasshoppers chirping, was highly
enchanted; and, desiring to possess the same charms of melody,
demanded what sort of food they lived on to give them such
beautiful voices.
they replied, "the dew."
the ass resolved that
he would live only upon dew, and in a short time died of hunger.

even a fool is wise-when it is too late