1:17 So I decided to discern the benefit of wisdom and knowledge over foolish behavior and ideas;
however, I concluded that even this endeavor is like trying to chase the wind!
2:12 Next, I decided to consider wisdom, as well as foolish behavior and ideas.
For what more can the king’s successor do than what the king has already done?
2:15 So I thought to myself, “The fate of the fool will happen even to me!
Then what did I gain by becoming so excessively wise?”
So I lamented to myself,
“The benefits of wisdom are ultimately meaningless!”
9:10 Whatever you find to do with your hands,
do it with all your might,
because there is neither work nor planning nor knowledge nor wisdom in the grave,
the place where you will eventually go.
10:10 If an iron axhead is blunt and a workman does not sharpen its edge,
he must exert a great deal of effort;
so wisdom has the advantage of giving success.