Reference for Ecclesiastes 1:18

כִּ֛י בְּרֹ֥ב חָכְמָ֖ה רָב־כָּ֑עַס וְיוֹסִ֥יף דַּ֖עַת יוֹסִ֥יף מַכְאֽוֹב׃

For in much wisdom is much vexation; And he that increaseth knowledge increaseth sorrow.