"The monstrosity of sexual intercourse outside marriage is that those who indulge in it are trying to isolate one kind of union (the sexual) from all the other kinds of union which were intended to go along with it and make up the total union."

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Adultery is in most cases a theft in the dark. At such moments almost every woman betrays her husband's innermost secrets; becomes a Delilah who discloses to a stranger, discloses to her lover, the mysteries of her husband's strength or weakness. What seems to me treason is, not that women give themselves, but that a woman is prone, when she does so, to justify herself to herself by uncovering her husband's nakedness, exposing it to the inquisitive and scornful gaze of a stranger.

— Stefan Zweig