Marriage and Morals is a 1929 book by philosopher Bertrand Russell, in which the author questions the Victorian notions of morality regarding sex and marriage. Russell argues that the laws and ideas about sex of his time were a potpourri from various sources and were no longer valid. The subjects range from criticisms of social norms, theories about their origins and tendencies, evolutionary psychology, and instinctual attachment to children (or lack thereof), among others. Notably, the book found marital rape to be common, stating: "Marriage is for woman the commonest mode of livelihood, and the total amount of undesired sex endured by women is probably greater in marriage than in prostitution.". Russell also argues for increased availability of birth control, the decriminalization of homosexuality, improved sex education, easier access to divorce, and greater freedom of women to pursue their own interests and careers. Source: Wikipedia (en)