The historical approach to English Literature “has been destroyed at Cambridge and is now being destroyed at Oxford too. This is done by a compact, well-organized group of whom [F.R.] Leavis is the head. It now has a stranglehold on the schools as well as the universities (and the High Brow press). It is too open and avowed to be called a plot. It is much more like a political party – or Inquisition. Leavis himself is something (in the long run) more fatal than a villain. He is a perfectly sincere, disinterested, fearless, ruthless fanatic. I am sure he would, if necessary, die for his critical principles: I am afraid he might also kill for them. Ultimately, a pathological type – unhappy, intense, mirthless. Incapable of conversation: dead silence or prolonged, passionate, and often irrelevant, monologue are his only two lines.”
A letter from C.S. Lewis to J.B. Priestley on September 18, 1962, quoted in Harry Lee Poe The Completion of C.S. Lewis