Michael Foucault. The Archaeology of Knowledge. 1972

There is the notion of 'spirit', which enables us to establish between the simultaneous or successive phenomena of a given period a community of meanings, symbolic links, an interplay of resemblance and reflexion, or which allows the sovereignty of collective consciousness to emerge as the principle of unity and explanation. We must question those ready-made syntheses, those groupings that we normally accept before any examination, those links whose validity is recognised from the outset; we must oust those forms and obscure forces by which we usually link the discourse of one man with that of another; they must be driven out from the darkness in which they reign. And instead of according them unqualified, spontaneous value, we must accept, in the name of methodological rigour, that, in the first instance, they concern only a population of dispersed events.