Complex sentence: Art talks with his psychiatrist, Paul Pavel, a Czech Holocaust survivor, about the book, who suggests that, as those who perished in the camps can never tell "their" stories, "maybe it's better not to have any more stories".
Split into simpler sentences: Art talks with his psychiatrist, Paul Pavel, a Czech Holocaust survivor, about the book. Pabel suggests that, as those who perished in the camps can never tell "their" stories, "maybe it's better not to have any more stories".