Ecclesiastes 2:11-13

11Then I looked on all the works that my hands had wrought, and on the labour that I had laboured to do: and, behold, all was vanity and vexation of spirit, and there was no profit under the sun.

12And I turned myself to behold wisdom, and madness, and folly: for what can the man do that cometh after the king? even that which hath been already done.1 13Then I saw that wisdom excelleth folly, as far as light excelleth darkness.2