This paper examines the relationship between some scholia to the IIId book of Plato’s Republic, Proclus’ commentary on it, and the so-called Chrestomathia, a work that the manuscripts attribute to the Neoplatonic philosopher himself. The conclusion is that the relationship between the three texts is highly problematic, and that we cannot think of a simple and direct derivation from one another. The author of the scholia probably made use of texts different from those that have come down to us, or (...) alternatively he has reworked his sources in a personal way. (shrink)