Another feature of human societies like language and money, which arises spontaneously and without a design or designer is the market.

Instead it comes about as the result of individuals acting in their own self-interest and pursuing their own happiness.

It becomes readily apparent that their interests are inextricably intertwined with those of others across the globe. 

Whether conscious of it or not, men benefit their fellows best when pursuing their own interests. 

I find this a fascinating reality to ponder.