One briar does not make a hedge.
More Italian Proverbs:
Who has no children does not know what love is.Italian
Vetches seem bitter to the full-cropped pigeon.
Italian
Handsome is not what is handsome, but what pleases.
Italian
He devil tempts all, but the idle man tempts the devil.
Italian
A muffled cat is no good mouser.
Italian
Some sing who are not merry.
Italian