I’m making a brief exploration of one of the most significant oppositions in Foucaut’s thought, which has not been discussed that much in my experience, but I may well have overlooked some vast bibliography. In any case, there is a major polarity in Foucault between the style of living in antiquity, related to care of the self, and in which ‘style’ can be replaced by ‘aesthetics’ or ‘techne’, while ‘living’ can be replaced by ‘existence’, in ways I do not think make much difference to the current discussion. There is also a relation with the discussions of the government of the self and the use of pleasure. I am not getting into references and precise context, but outlining the general field.
The most obvious opposition to ‘style of living’ is the emergence of ‘subjectivty’ in the sense of some deep subject behind speech and action. Foucault’s understanding of this refers in large part to the development of the confessional in Christianity, with the standard Catholic confession in private to a priest taken as the end point. There is a suggestion in this historical discussion of a historical preparation for the development of assumptions about the sıbject that come to inform Descartes, and what follows Descartes with regard to consciousness and subjectivity.