'The Physiology of Marriage' is a non-fiction book penned by Honoré de Balzac. It is a thought-provoking examination of the intricacies of relationships and the role of love and seduction within them. Balzac presents the idea of treating marriage as a science and explores various aspects, from moral education to preventing infidelity, with an objective and balanced approach. Despite being intended for a male audience, it gained widespread popularity among women, who appreciated its refreshing take on the conventional institution of marriage.