Both sadism and masochism, although in their milder forms they are normal, are connected, in their pernicious manifestations, with the sense of sexual guilt. A masochist is a man acutely conscious of his own guilt in connection with sex. A sadist is a man more conscious of the guilt of the woman as temptress. These effects, in later life, show how profound has been the early impression produced by unduly severe moral teaching in childhood.
Source: Bertrand Russell :Marriage and Morals, 1929
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