Her moving work, Against Interpretation, is regarded as a quintessential text from the 60s. In it, she addresses both the advantages and the disadvantages of metaphors.
To speak of style is one way of speaking about the totality of a work of art. Like all discourse about totalities, talk of style must rely on metaphors. And metaphors mislead.
Take, for instance, Whitman’s very material metaphor. By likening style to a curtain, he has of course confused style with decoration and for this would be speedily faulted by most critics. To conceive of style as a decorative encumbrance on the matter of the work suggests that the curtain could be parted and the matter revealed; or, to vary the metaphor slightly, that the curtain could be rendered transparent. But this is not the only erroneous implication of the metaphor. What the metaphor also suggests is that style is a matter of more or less (quantity), thick or thin (density) . And, though less obviously so, this is just as wrong as the fancy that an artist possesses the genuine option to have or not to have a style. Style is not quantitative, any more than it is superadded. A more complex stylistic convention-say, one taking prose further away from the diction and cadences of ordinary speech—does not mean that the work has “more” style.
Indeed, practically all metaphors for style amount to placing matter on the inside, style on the outside. It would be more to the point to reverse the metaphor. The matter, the subject, is on the outside; the style is on the Inside. As Cocteau writes: “Decorative style has never existed. Style is the soul, and unfortunately with us the soul assumes the form of the body.” Even if one were to define style as the manner of our appearing, this by no means necessarily entails an opposition between a style that one assumes and one’s “true” being. In fact, such a disjunction is extremely rare. In almost every case, our manner of appearing is our manner of being. The mask is the face.
I should make clear, however, that what I have been saying about dangerous metaphors doesn’t rule out the use of limited and concrete metaphors to describe the impact of a particular style. It seems harmless to speak of a style, drawing from the crude terminology used to render physical sensations, as being “loud” or “heavy” or “full” or “tasteless” or, employing the image of an argument as “inconsistent.”
Against Interpretation is well worth the read in its entirely.