Legal institutions have since evolved to facilitate impersonal trade. Exporters and importers no longer need to know one another, because they can write a contract that a court will enforce.
后来，法律制度的演变开始便利非人格的贸易。出口者和进口者不再需要认识彼此，因为他们只需要立一份契约，自有法庭会替他们执行。