The tree is known by its fruit.
More Italian Proverbs:
Dirty water will quench fire.Italian
Lent, which seems so long, is short at other men's tables.
Italian
He that would have the fruit, must climb the tree.
Italian
To go safely through the world you must have the eye of a falcon, the ear of an ass, the face of an ape, the mouth of a pig, the shoulders of a camel, and the legs of a deer.
Italian
Don't reject the good together with the bad.
Italian
A guest and a fish stink in three days.
Italian