Plato's "Phaedrus" is a dialogue that delves into various themes, primarily focusing on the nature of rhetoric, love, and the differences between spoken and written communication.
Plato, through Socrates, argues that speech (spoken communication) is superior to writing because it allows for direct interaction and the immediate clarification of ideas through dialogue.
Socrates argues that writing, unlike speech, is a static medium that cannot adapt to the needs of the audience or respond to questions and challenges in real-time. He suggests that true knowledge and wisdom can only be transmitted through dialectic, which involves live discussion and inquiry.