The cow knows not what her tail is worth until she has lost it.
More Danish Proverbs:
You must lose a fly, to catch a trout.Danish
A thief does not willingly see another carry a basket.
Danish
If the beard were all, goats could preach.
Danish
It is best to be off with the old love before you are on with the new.
Danish
You may take a horse to the water, but you can't make him drink.
Danish
Let the blood be ever so thin, it is always thicker than water.
Danish