Ecclesiastes 2:17-19

Revised Standard Version Catholic Edition

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 had toiled 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 a wise man 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.