William H Walling, Sexology (1909)
“ Love, then, as soon as it is determined and fixed by marriage, tends to free itself from the tyranny of the organs. It is this imperious tendency (of which man is warned from the first day by the fatigue of his senses, and upon which so many persons build such wretched illusions) that the proverb expresses: 'Marriage is the tomb' that is to say, the emancipation, 'of love.' The people, whose language is always concrete, have intended here by love the violence of desire, the fire of the blood; it is this entirely physical love which, according to the proverb, is extinguished in marriage. ”
