Who told you that Christians must not go to the theatre, dance, play cards, drink, or smoke? The “World,” you will remember, is mentioned along with the flesh and the devil. The Flesh means sexual vice (but not marriage), drunkenness (but not drinking) enslavement to indulgent habits (but not [illegible], not smoking just as much) and over-eating (but not enjoying one’s meals). The Devil means occultism and magic in all their various forms (spiritualism, astrology, future-telling, avoiding 13, not walking under ladders). The World means worldly ends and ambition (inordinate interest in one’s career, love of money, snobbery, desire to be in the right set, desire for popularity). Of course any of the innocent pleasures may have to be given up in a particular xtreme: e.g. cards must go if you can’t play without becoming totally absorbed in it and drink must go if you can’t drink without taking too much. But a list of general prohibitions such as you suggest is not in the spirit of Christianity at all: it is more like the old Jewish law, from which, as St. Paul says, we are ‘set free’. The test of an innocent pleasure is whether you can with a clean mind give God thanks for it—as I certainly can for a glass of beer on a hot day but can not for being drunk: can be contended without it. It is not the pleasure but the enslavement to an act is bad. I don’t myself know of a particular actor who has been converted—how shd. I—just as I don’t happen to know of a particular postman who has. But I don’t think that means that I must’ve lost the letter. You write again if I haven’t been clear: meanwhile, all good wishes.