Ecclesiastes 2:19-22

¹⁹And who knoweth, whether he will be a wise man or a fool? yet will he have full sway over all my toil wherein I have toiled, and wherein I have shown myself wise under the sun. Also this is vanity.

²⁰Therefore I turned about to cause my heart to give up thinking of all the toil wherewith I had toiled under the sun.

²¹For there is many a man whose toil is in wisdom, and in knowledge, and with energy; yet to a man that hath not toiled therefore must he give it as his portion. Also this is vanity and a great evil.

²²For what doth a man obtain of all his toil, and of the torture of his heart, wherewith he toileth under the sun?