Ecclesiastes 1:2-3; Ecclesiastes 1:14; Ecclesiastes 1:17

2 Perfectly pointless, says the Teacher, perfectly pointless. Everything is pointless. 3 What do people gain from all the hard work that they work so hard at under the sun?
14 When I observed all that happens under the sun, I realized that everything is pointless, a chasing after wind.
17 But when I set my mind to understand wisdom, and also to understand madness and folly, I realized that this too was just wind chasing.