Ecclesiastes 4:6-8

⁶Better is a handful of quietness, than both the hands full of labour and striving after wind.

⁷Then I returned and saw vanity under the sun.

⁸There is one that is alone, and he hath not a second; yea, he hath neither son nor brother; yet is there no end of all his labour, neither is his eye satisfied with riches: 'for whom then do I labour, and bereave my soul of pleasure?' This also is vanity, yea, it is a grievous business.