Ecclesiastes 2:10-12

Complete Jewish Bible

¹⁰ I denied my eyes nothing they wanted. I withheld no pleasure from myself; for I took pleasure in all my work, and this was my reward for all my work. ¹¹ Then I looked at all that my hands had accomplished and at the work I had toiled at; and I saw that it was all meaningless and feeding on wind, and that there was nothing to be gained under the sun.

¹² So I decided to look more carefully at wisdom, stupidity and foolishness; for what can the man who succeeds the king do, except what has already been done?