Summary
This fable tells us the story of a cat who thought that was very clever. This cat heard that the birds were sick and so he decided to dress himself up as a doctor and try to trick the birds into letting him in their nest so that he would supposedly treat them. But the birds sew behind the cat's disguise and sent him on his way saying "we shall do very well, when we've seen the last of you".
The Fable
A Cat heard that the Birds in an aviary were ailing. So he got himself up as a doctor, and, taking with him a set of the instruments proper to his profession, presented himself at the door, and inquired after the health of the Birds. "We shall do very well," they replied, without letting him in, "when we've seen the last of you."
Analysis
The moral lesson of this fable is that "A villain may disguise himself, but he will not deceive the wise."Oftentimes Aesop's fables emphasize how important it is to be wise, so that one can recognize a dangerous situation and avoid the consequences of imprudence that could even cost one's life.