Clojure makes quines way too easy

A popular programming challenge is to, in your favorite programming language, write a Quine -- a program/function that prints its own source code.  Usually, writing a Quine is an incredibly mindbending effort.  However, yesterday, it was pointed out to me that in Clojure, this task is ridiculously simple:

(defn self-source
  "prints the source of itself"
  []
  (source self-source))

Where's the challenge in that?  :-)