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
Again I looked and saw all the oppression that was taking place under the sun: I saw the tears of the oppressed – and they have no comforter; power was on the side of their oppressors – and they have no comforter.
NIV
THEN I returned and considered all the oppressions that are practiced under the sun: And I beheld the tears of the oppressed, and they had no comforter; and on the side of their oppressors was power, but they [too] had no comforter.
AMP
So I returned, and considered all the oppressions that are done under the sun: and behold the tears of such as were oppressed, and they had no comforter; and on the side of their oppressors there was power; but they had no comforter.
KJV
There was no end to all the people who were before them. But those who came later were not pleased with the successor. This too is meaningless, a chasing after the wind.
NIV
There was no end to all the people; he was over all of them. Yet those who come later will not rejoice in him. Surely this also is vanity (emptiness, falsity, vainglory) and a striving after the wind and a feeding on it.
AMP
There is no end of all the people, even of all that have been before them: they also that come after shall not rejoice in him. Surely this also is vanity and vexation of spirit.
KJV