  Also like other Platonic dialogues, the main discussion of the Theaetetus is set within a framing conversation (142a–143c) between Eucleides and Terpsion (cp. Phaedo 59c). This frame may be meant as a dedication of the work to the memory of the man Theaetetus. Sedley 2004 (6–8) has argued that it is meant to set some distance between Plato’s authorial voice and the various other voices (including Socrates’) that are heard in the dialogue. Alternatively, or also, it may be intended, like Symposium 172–3, to prompt questions about the reliability of knowledge based on testimony. (Cp. the law-court passage (Theaetetus 201a–c), and Socrates’ dream (Theaetetus 201c–202c).)