evidence: Aristotle explains what he has in mind by comparing akrasia to the condition of other people who might be described as knowing in a way, but not in an unqualified way. His examples are people who are asleep, mad, or drunk; he also compares the akratic to a student who has just begun to learn a subject, or an actor on the stage (1147a10–24). All of these people, he says, can utter the very words used by those who have knowledge; but their talk does not prove that they really have knowledge, strictly speaking. [...] - Barney, Rachel, 2008, "Aristotle’s Argument for a Human Function", Oxford Studies in Ancient Philosophy, 34(Summer): 293–322. [...] - Russell, Daniel C., 2012a, "Aristotle’s Virtues of Greatness", Oxford Studies in Ancient Philosophy, Supplementary Volume 2012, Virtue and Happiness: Essays in Honour of Julia Annas, pp. 115–147.