Above all, there is no simple one-to-one relationship between culture and ethnic identity, despite what many still believe. There are ethnic groups w… - Thomas Hylland Eriksen

As mentioned, no society has a prescriptive practice. The rules are always adjusted to fit the bumpy and contradictory world of experience. It must nevertheless be admitted that absolute rules exist everywhere. The incest prohibition exists in all societies, even if it has often been pointed out that it varies in its significance and compass; in some societies, it is limited to the kin we might call close family, that is, people with the same biological mother and father and their relatives in direct lines of descent; but usually half-siblings are included in the incest prohibition, and often the prohibition is extended to include what we might call more remote relatives.

Anthropology is an intellectually challenging, theoretically ambitious subject which tries to achieve an understanding of culture, society and humanity through detailed studies of local life, made sense of through comparison and contextualisation. But it is also a form of storytelling about the lives that you and I could have led, but didn’t because we were busy living our own lives.

It must be added that many anthropologists are satisfied with one or two periods of fieldwork, that not all field studies last for a year or more, and that there are a lot of different ways in which an anthropological investigation can be undertaken, only a few of which have been dealt with here. Yet certain methodological requirements are definite and non-negotiable. Contextualisation is one; another consists of aiming to understand the world of the natives as far as possible in the way they themselves understand it, as a basis for further analysis.