Ecclesiastes 2:17-22 English Standard Version (ESV)

17. So I hated life, because what is done under the sun was grievous to me, for all is vanity and a striving after wind.

18. I hated all my toil in which I toil under the sun, seeing that I must leave it to the man who will come after me,

19. and who knows whether he will be wise or a fool? Yet he will be master of all for which I toiled and used my wisdom under the sun. This also is vanity.

20. So I turned about and gave my heart up to despair over all the toil of my labors under the sun,

21. because sometimes a person who has toiled with wisdom and knowledge and skill must leave everything to be enjoyed by someone who did not toil for it. This also is vanity and a great evil.

22. What has a man from all the toil and striving of heart with which he toils beneath the sun?

Ecclesiastes 2