Ecclesiastes 4:7-9 New King James Version (NKJV)

7. Then I returned, and I saw vanity under the sun:

8. 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.

9. Two are better than one,Because they have a good reward for their labor.

Ecclesiastes 4