 It is not easy to understand the point Aristotle is making here. Has he not already told us that there can be no complete theoretical guide to ethics, that the best one can hope for is that in particular situations one’s ethical habits and practical wisdom will help one determine what to do? Furthermore, Aristotle nowhere announces, in the remainder of Book VI, that we have achieved the greater degree of accuracy that he seems to be looking for. The rest of this Book is a discussion of the various kinds of intellectual virtues: theoretical wisdom, science (epistêmê), intuitive understanding (nous), practical wisdom, and craft expertise. Aristotle explains what each of these states of mind is, draws various contrasts among them, and takes up various questions that can be raised about their usefulness. At no point does he explicitly return to the question he raised at the beginning of Book VI; he never says, “and now we have the standard of right reason that we were looking for”. Nor is it easy to see how his discussion of these five intellectual virtues can bring greater precision to the doctrine of the mean.