 The interest in Pythagoras and Pythagoreans in the first century BCE is not limited to Cicero, however. Both a famous ode of Horace (I 28) and a brief reference in Propertius (IV 1) present Archytas as a master astronomer. Most striking of all is the speech assigned to Pythagoras that constitutes half of Book XV of Ovid’s Metamorphoses (early years of the first century CE) and that calls for strict vegetarianism in the context of the doctrine of transmigration of souls. These latter themes are true to the earliest evidence for Pythagoras, but the rest of Ovid’s presentation assigns to Pythagoras a doctrine that is derived from a number of early Greek philosophers and in particular the doctrine of flux associated with Heraclitus (Kahn 2001, 146–149).