Although I don't disagree that utterances express desires and try to make complexities precise, I actually don't think at all that any of our efforts to speak and mean things are ultimately why we speak.
Paul FryCriticism is concerned with evaluation. There may be evaluative principles implicit in this or that form of theory, but theory in and of itself is not prescriptive.
Paul FryI do identify the escape hatch through which Foucault eludes the charge that he himself is an author/authority, hence a tyrant. He establishes the category of "founder of discursivity" for the authors he likes. Slippery, perhaps, but you can see what he means.
Paul Fry