 Spenser names Aristotle as his source for these virtues, though the influences of Thomas Aquinas and the traditions of medieval allegory can be observed as well.It is impossible to predict how the work would have looked had Spenser lived to complete it, since the reliability of the predictions made in his letter to Raleigh is not absolute, as numerous divergences from that scheme emerged as early as 1590 in the first "Faerie Queene" publication.In addition to the six virtues Holiness, Temperance, Chastity, Friendship, Justice, and Courtesy, the Letter to Raleigh suggests that Arthur represents the virtue of Magnificence, which ("according to Aristotle and the rest") is "the perfection of all the rest, and containeth in it them all"; and that the Faerie Queene herself represents Glory (hence her name, Gloriana).