Ecclesiastes 2:18

15 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.

16 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.

17 Therefore I hated life; because the work that is wrought under the sun [is] grievous to me: for all [is] vanity and vexation of spirit.

18 Yes, I hated all my labor which I had taken under the sun: because I should leave it to the man that shall be after me.

19 And who knoweth whether he shall be a wise [man] or a fool? yet shall he have rule over all my labor in which I have labored, and in which I have showed myself wise under the sun. This [is] also vanity.

20 Therefore I went about to cause my heart to despair of all the labor which I took under the sun.

21 For there is a man whose labor is in wisdom, and in knowledge, and in equity; yet to a man that hath not labored in it, shall he leave it [for] his portion. This also [is] vanity and a great evil.