Possible Clues:

• Noted storyteller
• Fable teller of note
• Originator of the phrase 'Familiarity breeds contempt'
• "The Fox and the Crow" writer
• 'Sour grapes' storyteller
• Writer taking Ecstasy in a sweetener
• Certain moral authority
• "Sour grapes" fabulist
• Man known for his morals
• "Zeus and the Tortoise" storyteller