Perry's Index to the Aesopica
Fables exist in many versions; here is one version in English:
THE BOASTFUL MULE
A mule once happened to be eating the food of idleness in his manger. Feeling
his oats, so to speak, he burst into a run, whinnying and shaking his head to
and fro. 'My mother is a horse,' he shouted, 'and I am no worse at racing than
she is!' But suddenly he drew to a halt and hung his head in shame, remembering
that his father was only a donkey.
Aesop's Fables. A new translation by Laura
Oxford University Press (World's Classics): Oxford, 2002.
cover, with new ISBN, published in 2008; contents of book unchanged.
Perry 315: Gibbs (Oxford) 206 [English]
Perry 315: L'Estrange 118 [English]
Perry 315: Townsend 183 [English]
Perry 315: Babrius 62 [Greek]
Perry 315: Chambry 128 [Greek]
You can find a compilation of Perry's index to the Aesopica in the gigantic appendix to his
edition of Babrius and Phaedrus for the Loeb Classical Library
(Harvard University Press: Cambridge, 1965). This book is an absolute must for anyone interested
in the Aesopic fable tradition. Invaluable.