Heliodorus ( el, Ἡλιόδωρος) is cited as the author of a work titled ''Commentary'' (dated 564 AD), which has been preserved, on the ''Introduction'' or ''Rudiments'' of

Paulus Alexandrinus Paulus Alexandrinus was an astrological author from the late Roman Empire. His extant work, ''Eisagogika'', or ''Introductory Matters'' (or ''Introduction''), which was written in 378 AD, is a treatment of major topics in astrology as practiced in ...

, the 4th century Alexandrian astrologer. The name "Heliodorus" appears only on the later of two groups of manuscripts, and so is somewhat doubtful. Leendert Westerink has argued that the commentary consists of notes of lectures, most likely given by the 6th-century philosopher and astrologer, Olympiodorus, in 564 AD.Westerink, L. G., (1971), ''Byzantinische Zeitschrift'' 64, p. 6ff. The Greek text of his commentary on

Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatetic school of ph ...

's '' Nicomachean Ethics'' has been published in vol. 19.2 of ''

Commentaria in Aristotelem Graeca ''Commentaria in Aristotelem Graeca'' 'edita consilio et auctoritate academiae litterarum Regiae Borussicae''(''CAG'') (Greek Commentaries on Aristotle dited by order and auctority of the Prussian Royal Academy of literary studies is the standa ...

'' (CAG).

Notes

6th-century philosophers 6th-century Byzantine people Byzantine philosophers 6th-century Byzantine writers {{Greece-philosopher-stub