Now a philosopher exploring the difficult terrain of right and wrong should not be over-impressed by the argument "a child would know the difference"… - Tom Stoppard

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Now a philosopher exploring the difficult terrain of right and wrong should not be over-impressed by the argument "a child would know the difference". But when, let us say, we are being persuaded that it is ethical to put someone in prison for reading or writing the wrong books, it is well to be reminded that you can persuade a man to believe almost anything provided he is clever enough, but it is much more difficult to persuade someone less clever.