If I were asked to summarize the benefits of human society in just one word, that word would be ''Exchange'.

If I were asked to clarify what I meant, I would use two words. 'Knowledge' and 'Goods'.

The value we derive from the knowledge of others, both living and dead is inestimable.

When I use the term 'Goods' I mean all the products and services available on the market.

The variety and plentifulness of these goods is the result of the 'division of labor' and 'free markets'.