Ecclesiastes 2:17-20

17So I 1hated life, for the work which had been done under the sun was 2unhappy to me; because everything is futility and striving after wind.

18So I hated 3all the fruit of my labor for which I had labored under the sun, because I must 4leave it to the man who will come after me. 19And who knows whether he will be wise or 5a fool? Yet he will have control over all the fruit of my labor for which I have labored by acting wisely under the sun. This too is 6futility. 20Therefore I 7completely despaired over all the fruit of my labor for which I had labored under the sun.