A service is an intangible economic product that directly meets consumer needs without generating enduring assets, distinguished by its perishability, inconsistency, and the concurrent nature of its production and consumption. Scholars have examined its multifaceted aspects: Stevenson associated it with active duty and moral determination, while The Urantia Book described it as a divine obligation.
Oliver commended the integrity of civil service, Carlyle imagined a variety of societal roles, and Salmon highlighted ethical reform within domestic settings. These viewpoints together emphasize service's dual function as both an economic activity and a moral or social responsibility, illustrating its lasting importance across various fields and cultures.