As political science professor James Kurth of Swarthmore writes: The greatest movement of the second half of the nineteenth century was the movement of men from farm to the factory … . The greatest movement of the second half of the twentieth century has been the movement of women from the home to the office … . [This] movement separates the parents from the children, as well as enabling the wife to separate herself from her husband. By splitting the nuclear family, it is helping to bring about the replacement of the nuclear family with the non-family.