If it walks like a duck, quacks like a duck, looks like a duck, it must be a duck.
More Italian Proverbs:
A burden that one chooses is not felt.Italian
With the first wife is matrimony, the second company, the third heresy.
Italian
Priests, friars, nuns, and chickens never have enough.
Italian
He who has scalded himself once blows the next time.
Italian
Who glows not burns not.
Italian
A bad agreement is better than a good lawsuit.
Italian