The Quack Frog
A Frog emerging from the mud of a swamp,
proclaimed to all the world that he was come to cure all diseases.
"Here!" he cried, "come and see a doctor, the proprietor
of medicines such as man never heard of before; no, not /Esculapius
himself, Jove's court-physician!" "And how," said
the Fox, "dare you set up to heal others, who are not able
to cure your own limping gait, and blotched and wrinkled skin?"
Test a man's professions by his practice.