Work done by human beings is purposive action guided by intelligence; work that is repetitive or arduous is often called labor. Both purpose and intelligence may originate in persons other than those actually doing the work. Associated with the basic definition are many related usages including effort expended (also called toil); the result of that effort (a work of art); and one's job or employment, workplace, trade, occupation, or profession. In all these senses work is subject to technological modification, scientific and literary study, and ethical reflection.

Historical Background

In early civilized societies, the kind of work people did depended on their class: The elite had slaves do whatever they considered demeaning, notably if it involved unrewarded physical exertion. Certain religious attitudes perpetuated this devaluation. Some Buddhist and Christian monks, for instance, have associated physical inactivity with the highest spiritual states.

By contrast, in medieval Europe, a combination...