Critics are like eunuchs in a harem; they know how it's done, they've seen it done every day, but they're unable to do it themselves.
Source: In Great Theatrical Disasters, by Gyles Brandreth, 1983.
-- Brendan Behan, (Feb 9 1923-1964), Irish dramatist, author; His humorous, vibrant books captured the spirit of Irish nationalism; best known for his autobiographical Borstal Boy, 1958.