Emotions arise in individual experience, frequently with noticeable physiological signs, such as a racing heart, flushed or pallid face, tense gut, cold hands, and so forth, and thus may seem an unsuitable topic for sociological examination. This attitude, however, reckons without the incontrovertible facts that most human emotions result from real, imagined, recollected, or anticipated outcomes of social interaction and that interaction is the fundamental stuff of sociological analysis. Thus emotions are empirically linked to the social by virtue of their being a consequence of involvement in interaction. But emotions are also precursors of the social, by virtue of their mobilizing energy and motivation for the accomplishment of major social tasks, not the least of which is social solidarity itself.

Although emotions are thus important features of social life, they have had a varying place in the history of sociology. Early recognized as important by the great founders...