Ferdinand de Saussure, a pioneer in Semiotics, leads the discussion alongside influential figures like Sartre and Derrida. They delve into the intricacies of language, exploring Saussure's critical distinctions between langue and parole. The conversation highlights the relationship between signifiers and signifieds, illustrating the arbitrary nature of language through cultural examples. They also compare synchronic and diachronic approaches, emphasizing the relational aspects of meaning in linguistics. This rich insight into Semiotics reveals its profound impact on modern thought.