Ecclesiastes 4:8

4:8 There is one who is alone, and he has neither son nor brother. There is no end to all of his labor, neither are his eyes satisfied with wealth. For whom then, do I labor, and deprive my soul of enjoyment? This also is vanity, yes, it is a miserable business.
-World English Bible

Other Translation

4:8 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.
-King James Version