## crucible ##

a container used for heating substances to very high temperatures

## Even if you crush a fool ... yet his foolishness will not leave him ##

This means that even if a fool is made to suffer hardship or pain (being crushed is often a metaphor for suffering in Hebrew), he will remain foolish. (See: [[rc://en/ta/man/translate/figs-metaphor]])

## pestle ##

a tool for grinding materials in a mortar