Kohelet 1:17-18

Orthodox Jewish Bible

¹⁷ And I applied my lev to have da’as of chochmah, and to have da’as of holelot (madness) and sichlut (folly); I perceived that this also is striving after ruach (wind).

¹⁸ For in much chochmah (wisdom) is much ka’as (grief, vexation); and he that increaseth da’as increaseth mach’ov (sorrow).