Final answer:
The quote is from Shakespeare's play 'Julius Caesar,' spoken by Casca, illustrating the paradox of flattery and its role in manipulation and character dynamics in literature.
Step-by-step explanation:
The quote "But when I tell him he hates flatterers, He says he does, being then most flattered." is from William Shakespeare's play Julius Caesar. It is spoken by the character Casca in Act I, Scene II, and reflects the theme of manipulation and the paradox of flattery within the play.
Flattery is a common theme in literature, often revealing character flaws or the manipulative nature of interpersonal interactions. As Casca observes, even those who profess to dislike flattery may be most susceptible to it, highlighting the complexities of human ego and desire for affirmation.
The importance of understanding flattery and its impact on characters is evident not just in Shakespeare's works but across various literary texts, as it commonly serves as a tool for character development and thematic exploration.