Ecclesiastes 2:19-21

Young's Literal Translation

¹⁹ And who knoweth whether he is wise or foolish? yet he doth rule over all my labour that I have laboured at, and that I have done wisely under the sun! this also [is] vanity.

²⁰ And I turned round to cause my heart to despair concerning all the labour that I laboured at under the sun.

²¹ For there is a man whose labour [is] in wisdom, and in knowledge, and in equity, and to a man who hath not laboured therein he giveth it -- his portion! Even this [is] vanity and a great evil.