Heliodorus () 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, 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 (; 384–322 BC) was an Ancient Greek philosophy, Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, a ...

's ''

Nicomachean Ethics The ''Nicomachean Ethics'' (; , ) is Aristotle's best-known work on ethics: the science of the good for human life, that which is the goal or end at which all our actions aim. () It consists of ten sections, referred to as books, and is closely ...

'' has been published in vol. 19.2 of '' Commentaria in Aristotelem Graeca'' (CAG).

Notes

6th-century Greek philosophers 6th-century Byzantine writers Greek-language commentators on Aristotle {{AncientGreece-philosopher-stub