A Frog once upon a time came forth from his home in the marsh
and proclaimed to all the beasts that he was a learned physician,
skilled in the use of drugs and able to heal all diseases. A Fox
asked him, "How can you pretend to prescribe for others, when
you are unable to heal your own lame gait and wrinkled skin?"
(Translated by George Fyler Townsend, 1814-1900)