Thinking is a festival and thus human beings experience, through cogitation, the sociable structure of their thinking. As they think, speak and listen they listen and speak and they are in the company of others. It was Plato, the sociable one, who thus spoke and was listened to: “And thinking, is it the same thing to you as to me?” This is the question that Plato puts in Socrates's mouth, when faced with Theaetetus in a dialogue named after him. Theaetetus in turn asks a question: “How do you describe it?” And Socrates replies: “As a discourse that the mind carries on with itself about any subject it is considering. …, but I have a notion that, when the mind is thinking, it is simply talking to itself, asking questions and answering them, and saying yes or no.”