Full Idea
There is a widespread view in ancient ethics that virtue is a kind of understanding of moral value.
Gist of Idea
Virtue is a kind of understanding of moral value
Source
Julia Annas (Ancient Philosophy: very short introduction [2000], Ch.3)
Book Reference
Annas,Julia: 'Ancient Philosophy: a very short introduction' [OUP 2000], p.51
A Reaction
In Aristotle's case, this coincides with his apparent view that 'understanding' is the aim of all areas of human thought. See Idea 12038.
Related Idea
Idea 12038 Translate as 'humans all desire by nature to understand' (not as 'to know') [Aristotle, by Annas]