A work ill done must be twice done.
More Welsh Proverbs:
Be honorable yourself if you wish to associate with honorable people.Welsh
Perfect love sometimes does not come till the first grandchild.
Welsh
Adversity and loss make a man wise.
Welsh
Anger is the mother of treachery.
Welsh
Have a horse of your own and then you may borrow another's.
Welsh
A wife's advice is not worth much, but woe to the husband who refuses to take it.
Welsh