Ecclesiastes 2:11

Expanded Bible

¹¹ But then I ·looked at [turned my attention to] what I had done,
    and I thought about all the ·hard work [toil].
Suddenly I realized it was useless [1:2], like chasing the wind.
    There is ·nothing to gain [no profit/advantage] from anything we do ·here on earth [^Lunder the sun; 1:3].