Perry's Index to the Aesopica
Fables exist in many versions; here is one version in English:
PROMETHEUS AND THE TEARS
This is also something that Aesop said. The clay which Prometheus used when
he fashioned man was not mixed with water but with tears. Therefore, one should
not try to dispense entirely with tears, since they are inevitable.
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 430: Gibbs
(Oxford) 516 [English]
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.