As Nancy Kaplan (1991), drawing upon Terry Eagleton, points out, at best one can write a secondary, physically separate text that metaphorically deconstructs the first--such as Roland Barthes' re-working of Balzac in S/Z.  But even these metaphorically deconstructed texts, Kaplan notes, are "constantly threatened by the material presence of the text on its page" (p. 17). Barthes' text becomes as frozen as Balzac's.