Lee's answer is right, of course, but why do you need to quote? A vector [...]is evaluated and the values inside also, and here clojurewerkz.neocons.rest, and are nrtreated as variables that are unrelated (you have an error message, right?). You can also specify the characters:
(require ['clojurewerkz.neocons.rest :as 'nr])
It also means that you could requirenamespaces dynamically if you pass a variable.
? , , (require ... ), , ns, . . require.