He who begins ill finishes worse.
More Italian Proverbs:
He who buys by the pennyworth keeps his own house and other men's too.Italian
Three know it, all know it.
Italian
A gold key opens every door.
Italian
Where there is great love there is great pain.
Italian
When the fox preaches, take care of yourselves, hens.
Italian
Nothing is ill said if it is not ill taken.
Italian