Apearance, after all, was a reflection of what a person thought of themselves and therefore, by extension, of others. A person crippled by self-loathing or self-doubt reflected those feelings in their appearance. Such visual clues did not inspire confidence in others because, and while not always completely accuate, for the most part they did reflect the inner person – wether or not that person realized it.
No self-respecting bird in good health would allow its feathers to look ruffled. No confident cougar would let its fur long remain matted and dirty. A statute mean to represent the nobility of man did not convey that concept by portraying him disheveled and dirty.
– Terry Goodkind, CHAINFIRE, p. 432