Yale University's Geoffrey Hartman, in Saving the Text: Literature/Derrida/Philosophy, published by Johns Hopkins University Press:

Because of the equivocal echo-nature of language, even identities or homophones sound on: the sound of Sa is knotted with that of Ça, as if the text were signalling its intention to bring Hegel, Saussure and Freud together. Ça corresponds to the Freudian Id (Es); and it may be that our "savoìr absolu" is that of a Ça structured like the Sa-significant: a bacchic or Lacanian "primal process" where only signifier-signifying signifiers exist.

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