There was a man all alone; he had neither son nor brother. There was no end to his toil, yet his eyes were not content with his wealth. "For whom am I toiling," he asked, "and why am I depriving myself of enjoyment?" This too is meaningless – a miserable business!
NIV
Here is one alone--no one with him; he neither has child nor brother. Yet there is no end to all his labor, neither is his eye satisfied with riches, neither does he ask, For whom do I labor and deprive myself of good? This is also vanity (emptiness, falsity, and futility); yes, it is a painful effort and an unhappy business. [Prov. 27:20; I John 2:16.]AMP
There is one alone, and there is not a second; yea, he hath neither child nor brother: yet is there no end of all his labour; neither is his eye satisfied with riches; neither saith he, For whom do I labour, and bereave my soul of good? This is also vanity, yea, it is a sore travail.
KJV