The discussion centers around famous quotes that are commonly misattributed to well-known figures, emphasizing that these quotes were never actually spoken by them. Participants share examples like "Elementary, my dear Watson," which is often linked to Sherlock Holmes, and "Play it again, Sam," misquoted from the film Casablanca. The conversation highlights the importance of identifying the true origins of these quotes, with many being derived from literature or speeches by lesser-known individuals. Misattributions often occur when a famous person quotes someone else, leading to confusion about the original source. Overall, the thread illustrates the phenomenon of quote misattribution and encourages deeper exploration of their true contexts.