Ecclesiastes 4:6-8

Better a handful with quietness Than both hands full, together with toil and grasping for the wind. Then I returned, and I saw vanity under the sun: There is one alone, without companion: He has neither son nor brother. Yet there is no end to all his labors, Nor is his eye satisfied with riches. But he never asks, “For whom do I toil and deprive myself of good?” This also is vanity and a grave misfortune.