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!
Then I considered all the skillful work that is done: Surely it is nothing more than competition between one person and another. This also is profitless – like chasing the wind.
For no one knows what is best for a person during his life – during the few days of his fleeting life – for they pass away like a shadow. Nor can anyone tell him what the future will hold for him on earth.
Just as no one has power over the wind to restrain it, so no one has power over the day of his death. Just as no one can be discharged during the battle, so wickedness cannot rescue the wicked.