A Swedish reformer's essay examines sexual morality, tracing historical development and arguing for liberated, ethical relations based on respect and personal freedom. It explores the evolution of romantic feeling, selection of partners, and the social and legal consequences of marriage and motherhood. The author advocates the right to motherhood and the option to be exempted from it, proposes collective support for child-rearing, easier divorce, and revised marriage laws, all aimed at promoting children's welfare and women's autonomy. Throughout, the author criticizes social hypocrisy and proposes pragmatic reforms to align private life with social responsibility and human development.