Methodological divisions in sociology, the study of the social, are not just deep and persistent but patterned—most obviously in the separate development of qualitative methods in ethnography and grounded theory, but also in subsidiary divisions within those separations, following the same pattern. The pattern being too deep-rooted to be explained as empirical happenstance, it will be explored here as the effect of an equally deep-rooted condition. More exactly, through postulating that sociology’s subject-matter, the social, is ontologically rooted in an essential (...) ambiguity between abstraction and individuation. Four criteria are drawn from the idea of the dichotomy being constitutively essential, which this or any alternative candidates must meet. The article conducts the postulate through the criteria, and applies the criterion of separating better from worse sociological theory to the work of Pierre Bourdieu. (shrink)