"Marriage is not an institution of nature. The family in the east is entirely different from the family in the west. Man is the servant of nature, and the institutions of society are grafts, not spontaneous growths of nature. Laws are made to suit manners, and manners vary. "Marriage must therefore undergo the gradual development towards perfection to which all human affairs submit." These words, pronounced in the presence of the Conseil d'Etat by Napoleon during the discussion of the civil code, produced a profound impression upon the author of this book; and perhaps unconsciously he received the suggestion of this work, which he now presents to the public. And indeed at the period during which, while still in his youth, he studied French law, the word ADULTERY made a singular impression upon him.