"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."