Style is, above all, a system of forms with a quality and a meaningful expression through which the personality of the artist and the broad outlook of a group are visible. It is also the vehicle of expression within the group, communicating and fixing certain values . . . . It is, besides, a common ground against which innovations and the individuality of particular works may be measured.
From Meyer Schapiro (an art historian), "Style" in Anthropology Today, (Chicago, 1953).