 Thus, his emphasis on culture as a context for meaningful action made him sensitive to individual variation within a society (William Henry Holmes suggested a similar point in an 1886 paper, "Origin and development of form and ornament in ceramic art", although unlike Boas he did not develop the ethnographic and theoretical implications).In a programmatic essay in 1920, "The Methods of Ethnology", Boas argued that instead of "the systematic enumeration of standardized beliefs and customs of a tribe", anthropology needs to document "the way in which the individual reacts to his whole social environment, and to the difference of opinion and of mode of action that occur in primitive society and which are the causes of far-reaching changes".Boas argued that attention to individual agency reveals that "the activities of the individual are determined to a great extent by his social environment, but in turn, his own activities influence the society in which he lives and may bring about modifications in a form".