The hypothesis that the Eudemian Ethics, and by consequence the Magna Moralia, are later than Aristotle has arisen from a simple misconception, continued in a Scholium attributed to Aspasius, who lived in the 2nd century A.D.
Nicomachean means " addressed to Nicomachus," and Eudemian " addressed to Eudemus "; but, as Cicero thought that the Nicomachean Ethics was written by Nicomachus, so the author of the Scholium thought that the Eudemian Ethics, at least so far as the first account of pleasure goes, was written by Eudemus.
Clarke has been generally supposed to have derived the opinion that time and space are attributes of an infinite immaterial and spiritual being from the Scholium Generale, first published in the second edition of Newton's Principia (1714).
Occasionally a scholium of this kind gives the substance of one of the longer extracts; but as a rule they are distinct.
Everything he published in later life may be called a commentary, an excursus or a scholium to his main book; and many of them are decidedly of the nature of commonplace books or collectanea of notes.