After the quotation by Jacques Deridda, David Lodge focuses his attention on Robyn's philosophy.
According to Robyn, the "selves", that reveal who we really are, our identities, not only depend on language but they are a product of it. She would say "we are what speaks us." Putting together this quotation and the plural use of the word "self" the intelligent reader understands that the narrator he's trying to convey the following message: when we speak we are not totally aware of all the things we say and the way we say them. More often people, who are listening to us, catch some "identities" of ourself ( because we have multiple identities) that we don't even know.
As the narrator goes on, the characterization of Robin and her thoughts become more and more interesting. She's very careful and she pays attention to the language she uses, as the paranthesis and all the clarifications she gives confirm. She's also very curios and she wants to be precise and look for explanation as her favourite expression "that is to say" reveals.
However her pecularity seems to go away once the narrator gets to the second part of the paragraph. She seems to be a common person with ordinary feelings, desires, emotions, fears like anyone else, who tries to make this world a better place.
In conclusion she still remains an interesting and particular character (if the narrator allowds the reader to define her in this way) who makes the reader cuorios about her habits, her everyday life and the relationships she may have with other characters.