I’ve been reading through parts of the correspondence of Fronto (c. 100-170), and among his letters are some to Emperor-Philosopher Marcus Aurelius (or, Richard Harris for those whose concerns with Roman history do not reach far beyond Gladiator), and in one such letter, he requests of his teacher:
Mitte mihi aliquid quod tibi disertissimum videatur, quod legam, vel tuum aut Catonis aut Ciceronis aut Sallustii aut Gracchi aut poetae alicuius, χρῄζω γὰρ ἀναπαύλης, et maxime hoc genus, quae me lectio extollat et diffundat ἐκ τῶν καταλειφυιῶν φροντίδων; etiam si qua Lucretii aut Ennii excerpta habes εὐφωνότατα, ἁδρά et sicubi ἤθους ἐμφάσεις.
An English rendering:
Send me something to read that seems most eloquent to you, either something of yours, Cato’s, Cicero’s, Sallust’s, Gracchus’, or some poet’s, for I need a break, and especially that kind the reading of which gives me a lift and cheers me up from confining cares. Also, if you have some bits from Lucretius or Ennius that sound the best, are extraordinary, and anywhere show their character, send those.
Fronto’s letters are littered with Greek phrases, as we see even in this short excerpt, and in the English translation, I’ve put the Greek phrases in bold.
 Epistulae, IV.1 (ed. M. van den Hout, Teubner, 1988, 105). Find more of Fronto’s letters here: