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na ostrovÄ›
Wealth is a meaningless term without the concept of value. If we know that the purpose of human action is to satisfy one's needs and wants, then the material wealth of two different individuals (let alone abstract entities such as nations) cannot tell us much about the satisfaction of their needs and wants. Wants and needs are subjective, unknown, and immeasurable by an outside observer.
We live in antiliberal times, when individual choice is highly suspect. The driving legislative ethos is toward making all actions required or forbidden, with less and less room for human volition. Simply put, we no longer trust the idea of freedom. We can't even imagine how it would work. What a distance we have traveled from the Age of Reason to our own times.
When do we say, "you're welcome"? We say that when we give a gift (a good or service) to a person without receiving anything in return. For example, I might hold a door for a person. That person says, "thank you," and I say, "you're welcome." Another time might be at a birthday party when the recipient of a gift expresses thanks.
These are one-way examples of benefaction. We are giving but not necessarily getting anything tangible in return. What makes the case of the commercial exchange different? Why do both parties say, "thank you"? It's because each side gives a gift to the other.