Proverbios 27

Wenn du den Narren im Morser zerstieftest mit dem Stampfel wie Grutze, so ließe doch seine Narrheit nicht von ihm.

Aunque majes al necio en un mortero entre granos de trigo á pisón majados, no se quitará de él su necedad.

Though thou shouldest bray a fool in a mortar among wheat with a pestle, yet will not his foolishness depart from him.

Though you grind a fool in a mortar with a pestle along with grain, yet his foolishness will not be removed from him.