A sacred cow is an idea that society does not allow to be questioned or criticized. The sacred cow is considered to be important for social stability, and challenges to the sacred cow threaten society’s sense of security and cohesion. Similarly, the Sacred Cows of Marriage and Divorce are ideas designed to keep unhappy couples married. Just as with other sacred cows, these ideas are so deeply ingrained that most of us are only vaguely aware of the ways in which they affect our thinking.