You must empty a box before you fill it again.
More Irish Proverbs:
If it's a secret, it's binding.Irish
If you meet a red-haired woman, you'll meet a crowd.
Irish
A house divided will soon fall.
Irish
It is better to have part of a man than no man at all.
Irish
It is not a matter of upper and lower class but of ups and downs.
Irish
Many a happy colt makes a fine horse.
Irish