English to Portuguese Other Philosophy

O primeiro capítulo do livro The Ideology of the Aesthetic, de Terry Eagleton, começa com a frase "Aesthetics is born as a discourse of the body". Em uma edição brasileira, essa frase foi traduzida por "A Estética nasceu como um discurso sobre o corpo". Não deveria ser "um discurso do corpo?"

For those who do not know portuguese, the question would be like this: The first sentence in the first chapter of Terry Eagleton's book, The Ideology of the Aesthetic, reads "Aesthetics is born as a discourse of the body". Does the author mean that the body discourses, or does he mean that someone discourses about the body? In one portuguese translation, it got the latter meaning, which I think is not adequate.

I don't think it matters, but here's the whole paragraph:
"Aesthetics is born as a discourse of the body. In its original formulation by the
German philosopher Alexander Baumgarten, the term refers not in the first place
to art, but, as the Greek aisthesis would suggest, to the whole region of human
perception and sensation, in contrast to the more rarefied domain of conceptual
thought. The distinction which the term 'aesthetic' initially enforces in the mid-
eighteenth century is not one between 'art' and 'life, but between the material and
the immaterial: between things and thoughts, sensations and ideas, that which is
bound up with our creaturely life as opposed to that which conducts some
shadowy existence in the recesses of the mind. It is as though philosophy suddenly
wakes up to the fact that there is a dense, swarming territory beyond its own
mental enclave which threatens to fall utterly outside its sway. That territory is
nothing less than the whole of our sensate life together — the business of
affections and aversions, of how the world strikes the body on its sensory surfaces,
of that which takes root in the gaze and the guts and all that arises from our most
banal, biological insertion into the world. The aesthetic concerns this most gross
and palpable dimension of the human, which post-Cartesian philosophy, in some
curious lapse of attention, has somehow managed to overlook. It is thus the first
stirrings of a primitive materialism — of the body's long inarticulate rebellion
against the tyranny of the theoretical."