Vernon Jones (1912)
119. THE OXEN AND THE BUTCHERS
Once upon a time the Oxen determined to be revenged upon the Butchers for the havoc they wrought in their ranks, and plotted to put them to death on a given day. They were all gathered together discussing how best to carry out the plan, and the more violent of them were engaged in sharpening their horns for the fray, when an old Ox got up upon his feet and said, "My brothers, you have good reason, I know, to hate these Butchers, but, at any rate, they understand their trade and do what they have to do without causing unnecessary pain. But if we kill them, others, who have no experience, will be set to slaughter us, and will by their bungling inflict great sufferings upon us. For you may be sure that, even though all the Butchers perish, mankind will never go without their beef."
Aesop's Fables: A New Translation by V.S. Vernon Jones with illustrations by Arthur Rackham (1912). This book is available online at Project Gutenberg.