All water runs to the sea.
More Italian Proverbs:
A fool can ask more questions than seven wise men can answer.Italian
When the tree is down, everyone runs to it with a hatchet to cut wood.
Italian
The ass's hide is used to the stick.
Italian
A fool's spark glows in all men.
Italian
One pair of ears would exhaust a hundred tongues.
Italian
The poison of asps is under their lips.
Italian