Ecclesiastes 2:21-25

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?

²³For all his days are full of pains, and vexation is mingled with his employment: yea, even in the night his heart taketh not rest. Also this is vanity.

²⁴It is not a good thing inherent in man that he should eat and drink, and that he should make his soul enjoy happiness for his toil. Also this have I seen, that it cometh out of the hand of God.

²⁵For who can well eat, or who can enjoy earthly things more than I?