Ecclesiastes 2:11-19

Then 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. And 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. Then I saw that wisdom excelleth folly, as far as light excelleth darkness. The wise man's eyes are in his head; but the fool walketh in darkness: and I myself perceived also that one event happeneth to them all. Then said I in my heart, As it happeneth to the fool, so it happeneth even to me; and why was I then more wise? Then I said in my heart, that this also is vanity. For there is no remembrance of the wise more than of the fool for ever; seeing that which now is in the days to come shall all be forgotten. And how dieth the wise man? as the fool. Therefore I hated life; because the work that is wrought under the sun is grievous unto me: for all is vanity and vexation of spirit. Yea, I hated all my labour which I had taken under the sun: because I should leave it unto the man that shall be after me. And who knoweth whether he shall be a wise man or a fool? yet shall he have rule over all my labour wherein I have laboured, and wherein I have shewed myself wise under the sun. This is also vanity.