Who is born a fool is never cured.
More Italian Proverbs:
He who makes himself a dove is eaten by the hawk.Italian
Wise men change their minds, fools never.
Italian
Your enemy makes you wiser.
Italian
Who goes himself is in earnest, who sends is indifferent.
Italian
Credit is dead, bad pay killed it.
Italian
One who wants to keep their yard tidy does not reserve a plot for the weeds.
Italian