Fable 54 - The Blind Man

A blind man was in the habit of recognizing by touch every creature which he held in his hands, saying what kind it was.
Then, one day, somebody handed him a wolf-cub. He felt it and was unsure:
‘I don’t know,’ he said, ‘if it be the young of a wolf or a fox, or one of the other animals of the same family, But what I do
know is that it is not to be put among a flock of sheep.’

It is thus that wicked nature is often recognized by its exterior.