The lion had need of the mouse.
More Italian Proverbs:
Among thorns grow roses.Italian
He hangs the May-branch at every door. (Alluding to the Italian custom of young men hanging out May-branches overnight before the door of their mistress.
Italian
The dog that is quarrelsome and not strong, woe to his hide.
Italian
Go early to market and as late as you can to battle.
Italian
When I'm dead, everybody's dead -- and the pig too.
Italian
If it rained macaroni, what a fine time for gluttons!
Italian