This is long overdue, but we finally have a new Housman quote. This one is drawn from memory (it preceded an article we'd read for some seminar, probably Vergil's Aeneid).
Housman was quoted as saying that whenever he read Vergil in translation he would say,
Out, hyperbolical fiend! how vexest thou this man!
This, of course, is a quote from Shakespeare's Twelfth Night, act 4 scene 2.