I'm not positive modesty is the best word here, nor that I'm using the primary definition of modesty. On this page are quotes about adorning ourselves, indulging in luxury, and properly covering ourselves with clothes. In other words, these quotes cover showing ourselves off and being a temptation to others.
Of course, I'm putting this page up on June 21, 2010 with just one quote, but it will be "quotes" in the near future.
Clement of Alexandria, c. A.D. 190
The love of adornment—which is far from caring for virtue, but claims the body for itself—is to be utterly expelled when the love of the beautiful has changed to empty show. Applying things unsuitable to the body, as if they were suitable, gives birth to a practice of lying and a habit of falsehood. It does not show what is decorous, simple, and truly childlike, but what is pompous, luxurious, and effeminate. Such women obscure true beauty, shading it with gold. And they do not know how great their transgression is when they fasten around themselves ten thousand rich chains. As they say that among the barbarians, "Criminals are bound with gold." Such women seem to me to emulate these rich prisoners. (The Instructor II:13)