Ecclesiastes 4.

⁹ Two are better than one,
   because they have a good return for their labour:
¹⁰ If either of them falls down,
   one can help the other up.
But pity anyone who falls
   and has no one to help them up.
¹¹ Also, if two lie down together, they will keep warm.
   But how can one keep warm alone?
¹² Though one may be overpowered,
   two can defend themselves.
A cord of three strands is not quickly broken.

Humanity really must learn to work with each other to the benefit of all!