The most popular writers on the theory of rhetoric were Hermagoras, Hermogenes, Aphthonius and Cassius Longinus—the last the reputed author of the essay On Sublimity. Among the most renowned teachers of rhetoric—now distinctively called “Sophists,” or rhetoricians—were Dio Chrysostom, Aelius Aristides, Themistius, Himerius, Libanius and Herodes Atticus. Akin to the rhetorical.