The Theaetetus is among the most brilliant of Plato's dialogues, but is also deeply enigmatic, leaving readers divided over its philosophical intentions. David Sedley proposes and develops a solution, based on a groundbreaking two-level reading. Offering significant reinterpretations of the dialogue's main arguments, The Midwife of Platonism is addressed to all readers interested in Plato, and does not require knowledge of Greek.