The Heifer and the Ox
A Heifer saw an Ox hard at work harnessed to a plough, and tormented him with reflections on his unhappy fate in being compelled to labour. Shortly afterward, at the harvest home, the owner released the Ox from his yoke, but bound the Heifer with cords, and led her away to the altar to be slain in honor of the festival. The Ox saw what was being done, and said to the Heifer: "For this you were allowed to live in idleness, because you were presently to be sacrificed."
The lives of the idle can best be spared.