Ecclesiastes 2:18-20

Revised Standard Version Catholic Edition

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