The Magna Moralia (Latin for "Great Ethics") is a treatise on ethics traditionally attributed to Aristotle, though the consensus now is that it represents an epitome of his ethical thought by a later, if sympathetic, writer. Several scholars have disagreed with this, taking the Magna Moralia to be an authentic work by Aristotle, notably Friedrich Schleiermacher, Hans von Arnim, and J. L. Ackrill. In any case, it is considered a less mature piece than Aristotle's other ethical works, viz. the Nicomachean Ethics and the Eudemian Ethics. There is some debate as to whether they follow more closely the Eudemian or the Nicomachean version of the Ethics. Source: Wikipedia (en)