A Classic from Touchstone back on March 1. One worth framing.
Once a wolf, desiring to have a flock of sheep at his disposal, mounted a stone in the pasture and pointed out that while grazing they frequently took up and ate small animals--worms, insects, protozoans, and whatnot. This meant, he insisted, that they had no cause to avoid him, much less reproach him for flesh-eating, since the sheep did it too. (full article here)