You cannot get oil out of a wall.
More French Proverbs:
He is like a cat, he always falls on his feet.French
The more fools, the more laughter.
French
When we don't have what we like, we must like what we have.
French
Pulling the devil by the tail does not lead far young or old.
French
He that waits for a dead man's shoes may long go barefoot.
French
He who lends to a friend loses twice.
French