NET

11 Yet when I reflected on everything I had accomplished and on all the effort that I had expended to accomplish it, I concluded: “All these achievements and possessions are ultimately profitless—like chasing the wind! There is nothing gained from them on earth.”

Darby

11 Then I looked on all the works that my hands had wrought, and on the labour that it had cost me to do [them]; and behold, all was vanity and pursuit of the wind, and there was no profit under the sun.

KJV

11 Then I looked on all the works that my hands had wrought, and on the labour that I had laboured to do: and, behold, all [was] vanity and vexation of spirit, and [there was] no profit under the sun.