Now viewing scripture range from the book of Ecclesiastes chapter 2:16 through chapter 2:21...
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 unto me: for all [is] vanity and vexation of spirit.
18 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.
19 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.
20 Therefore I went about to cause my heart to despair of all the labour which I took under the sun.
21 For there is a man whose labour [is] in wisdom, and in knowledge, and in equity; yet to a man that hath not laboured therein shall he leave it [for] his portion. This also [is] vanity and a great evil.