Synthesized answer
The provided passages do not explicitly state the central thesis of "Speech Genres and Other Late Essays." However, the description indicates that the collection presents six short works from Bakhtin's "Esthetics of Creative Discourse" [Passage 1]. These essays were primarily written in Bakhtin's later years and reflect a lifetime of analysis and reflection [Passage 1]. The passage also notes that all but one of the essays focus on the Bildungsroman [Passage 1].
While the passages offer context about the origin and nature of the essays within the book, they do not contain information that directly articulates the central thesis of the entire text [Passage 1]. Therefore, based solely on the provided material, the central thesis cannot be definitively identified.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Speech genres and other late essays by M. M. Bakhtin Description: "Speech Genres and Other Late Essays presents six short works from Bakhtin's Esthetics of Creative Discourse, published in Moscow in 1979. This is the last of Bakhtin's extant manuscripts published in the Soviet Union. All but one of these essays (the one on the Bildungsroman) were written in Bakhtin's later years and thus they bear the stamp of a thinker who has accumulated a huge storehouse of factual material, to which he has devoted a lifetime of analysis, reflection, and reconsideration."--Page 4 of cover.