In an older post of mine, I described a somewhat trivial issue that I have with quotation. I still don't see it as particularly problematic, but pretense is pretense, and I might as well bring this topic up again in the interest of hitting things from as many points as possible.
When quoting someone, you're essentially conceding that he or she is superior at representing a set of ideas -- either relatively superior to you, or the definitive authority on the ideas, period.
If the person quoted is superior only to you, good on you for bringing him or her to our attention; now remove yourself from the conversation if you don't have anything to add yourself so that we may investigate the approach and arguments presented by your source.
If the person quoted is superior to everyone, fine, but as soon as you append his or her name to the quote, you're essentially promoting adulation, which is how jealousy, war, social inequities, and deification result. It's also not even true that the person is the source of the quote, because we can't choose the ideas that come to us any more than we can choose to be incapable of passing through walls.
And honestly, if you want to give someone an award for an accomplishment, go with a Child Labor Factory Worker of the Year award over a Grammy or a Nobel prize. Productive work, especially in disingenuous or less than ideal conditions, is much more respectable than studying rocks or discovering potential musical combinations.