Ecclesiastes 1:16; Ecclesiastes 1:18; Ecclesiastes 2:9; Ecclesiastes 3:14

16 I said to myself, "Behold, I have magnified and increased wisdom more than all who were over Jerusalem before me; and my mind has observed a wealth of wisdom and knowledge."
18 Because in much wisdom there is much grief, and increasing knowledge results in increasing pain.
9 Then I became great and increased more than all who preceded me in Jerusalem. My wisdom also stood by me.
14 I know that everything God does will remain forever; there is nothing to add to it and there is nothing to take from it, for God has so worked that men should fear Him.