How we cite our quotes: (Part.Book.Chapter.Paragraph) We use the P. A. Motteux translation from 1712 for our quotes. Some familiar character names appear differently in this edition (Sancho Panza is Sancho Panca here, Rocinante is Rozinante, and Doña Rodriguez is Donna Rodriguez). We preserve Motteux's spellings in our quotes but use the more familiar versions of these names in our analysis.
Quote #7
"Whoever says that Don Quixote de la Mancha has forgot, or can forget, Dulcinea del Toboso, I will make him know with equal arms that he departs wholly from the truth; for the peerless Dulcinea del Toboso cannot be forgotten." (2.1.59.5)
Don Quixote is sickened to overhear two men talking about the fake sequel of Don Quixote, which claims that Don Quixote fell out of love with Dulcinea del Toboso. This angers the Don so much that he offers to fight anyone who would say such a terrible thing.
Quote #8
"I am positively convinced […] nor shall any man in the world ever persuade me to the contrary; and he is a blockhead who says, that great villain Mr Elisabat never lay with Queen Madasima." (1.3.10.7)
Cardenio has been betrayed by the woman he loves most—Lucinda. So you can see why the guy would be bitter toward classic stories that talk about women's virtue and loyalty toward their lovers. In this case, he cites a classic instance from an adventure story and says that the virtuous female character was definitely cheating on her husband. This would seem to show that fiction and reality don't match up—though we should keep in mind that Lucinda turns out to be faithful, after all, and she and Cardenio live, as far as we know, happily ever after.
Quote #9
"Thou hast nothing to do with my poor beast [Dapple], without whom I cannot enjoy a moment's ease." (1.4.3.4)
Loyalty doesn't only exist between humans in this book. Sancho feels a loyalty toward his donkey Dapple that may be stronger than his loyalty to Don Quixote. Whenever Dapple runs into danger, Sancho worries about him as though Dapple were Sancho's favorite child.