Imitating the literature of the Alexandrian period, they wrote romances, panegyrics, epigrams, satires, and didactic and hortatory poetry, following the models of Heliodorus and Achilles Tatius, Asclepiades and Posidippus, Lucian and Longus.
De Clementia (frequently translated as On Mercy in English) is a two volume (incomplete) hortatory essay written in AD 55-56 by Seneca the Younger, a Roman Stoic philosopher, to the emperor Nero in the first five years of his reign.
The Ādāb is cast in the parallellistic mode of expression born of the early Khotba and expanded and elaborated in Omayyad hortatory compositions, unembroidered with contrived rhyming of the sort found in later Abbasid prose literature.