כִּ֛י בְּרֹ֥ב חָכְמָ֖ה רָב־כָּ֑עַס וְיוֹסִ֥יף דַּ֖עַת יוֹסִ֥יף מַכְאֽוֹב׃
For in much wisdom is much vexation; And he that increaseth knowledge increaseth sorrow.
Find Mishnaic references to Ecclesiastes 1:18: , passages from the 63 tractates of the Mishnah.