The Dog in the Manger
A Dog was lying upon a manger full of hay. An Ox, being hungry, came near, and wanted to eat of the hay; but the envious, ill-natured cur, getting up and snarling at him, would not suffer him to touch it. Upon which the Ox, in the bitterness of his heart, said, "What a selfish wretch thou art, for thou canst neither eat hay thyself, nor suffer others to do so."
Selfishness is a most contemptible thing; but that degree of it which withholds from others what we can make no possible use of ourselves, is hateful in the extreme.