If you have a room which you do not want certain people to get into, put a lock on it for which they do not have the key. But there is no point in ta… - Ludwig Wittgenstein

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If you have a room which you do not want certain people to get into, put a lock on it for which they do not have the key. But there is no point in talking to them about it, unless of course you want them to admire the room from outside! The honorable thing to do is put a lock on the door which will be noticed only by those who can open it, not by the rest.