 Finally, if the virtue of style is about finding a balance between banal clarity, which is dull, and attractive dignity, which is inappropriate in public speeches, how can the orator manage to control the different degrees of clarity and dignity? For this purpose Aristotle equips the orator with a classification of words (more or less the same classification can also be found in Poetics chapter 21): First of all Aristotle distinguishes between the kuria onamata, the standard expressions, and the glôtta, the borrowed words, idioms or vernacular expressions. Most examples that Aristotle gives of this latter class are taken from the different Greek dialects, and most examples of this type are in turn taken from the language of the Homeric epos. Further classes are defined by metaphors and by several expressions that are somehow altered or modified, e.g., newly coined expressions (pepoiêmena), composite expressions (especially new or unusual compositions (ta dipla)), and lengthened, shortened or otherwise altered expressions. Sometimes Aristotle also uses the term kosmos under which he collects all epithets and otherwise ornamental expressions. These different types of words differ in accordance with their familiarity. Most familiar are the usual or current words, the least familiar words are the glôtta or words that are newly coined. The metaphors are also unknown and unusual, because a usual, well-known word is used to designate something other than its usual designation (see below  §8.2).  The best established words, the kuria, make their subject clear, but do not excite the audience’s curiosity, whereas all other types of words are not established, and hence have the sort of attraction that alien or foreign things used to have. Since remote things are admirable (thaumaston) and the admirable is pleasant, Aristotle says, one should make the speech admirable and pleasant by the use of such unfamiliar words. However one has to be careful not to use inappropriately dignified or poetic words in prose speech. Thus the virtue of style is accomplished by the selection and balanced use of these various types of words: Fundamental for prose speech is the use of usual and therefore clear words. In order to make the speech pleasant and dignified and in order to avoid banality the orator must make moderate use of non-familiar elements. Metaphor plays an important role for prose style, since metaphors contribute, as Aristotle says, clarity as well as the unfamiliar, surprising effect that avoids banality and tediousness.