כִּ֣י כְק֤וֹל הַסִּירִים֙ תַּ֣חַת הַסִּ֔יר כֵּ֖ן שְׂחֹ֣ק הַכְּסִ֑יל וְגַם־זֶ֖ה הָֽבֶל׃
For as the crackling of thorns under a pot, so is the laughter of the fool; this also is vanity.
Read midrashic interpretation of Ecclesiastes 7:6: and classical rabbinic exegesis.