英语寓言故事 The Crow and the Serpent

A Crow in great want of food saw a Serpent asleep in a sunny
nook, and flying down, greedily seized him.
The Serpent, turning
about, bit the Crow with a mortal wound.
In the agony of death,
the bird exclaimed:
"O unhappy me! who have found in that which I
deemed a happy windfall the source of my destruction."