In regard to all sexual matters there is a polarity according as they are described from the point of view of the participants or from that of jealous outsiders. What we do ourselves is "gallantry" ; what others do is "fornication". We must therefore remember the emotionally coloured terms, and we may employ them on occasion; but we must do so sparingly, and, in the main, we must content ourselves with neutral and scientifically accurate phraseology.
Source: Bertrand Russell :Marriage and Morals, 1929
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