Not all butter that the cow yields.
Many good cows have evil calves.
You cannot sell the cow and sup the milk.
Old oxen have stiff horns.
The ox is never woe, till he to the harrowgo.
An ox is taken by the horns, and the man by the tongue.
If the ox falls, whet your knife.
The black ox has trod on his foot.
The ox when weariest treads surest.
No one knows the luck of a lousycalf.
He has an ox on his tongue.
An old ox makes a straight furrow.
You cannot flay the same ox twice.