Gilman argued that women's contributions to civilization, throughout history, have been halted because of an androcentric culture. She believed that womankind was the underdeveloped half of humanity, and improvement was necessary to prevent the deterioration of the human race. Gilman believed economic independence is the only thing that could really bring freedom for women and make them equal to men. In 1898 she published "Women and Economics", a theoretical treatise which argued, among other things, that women are subjugated by men, that motherhood should not preclude a woman from working outside the home, and that housekeeping, cooking, and child care, would be professionalized. "The ideal woman," Gilman wrote, "was not only assigned a social role that locked her into her home, but she was also expected to like it, to be cheerful and gay, smiling and good-humored." When the sexual-economic relationship ceases to exist, life on the domestic front would certainly improve, as frustration in relationships often stems from the lack of social contact that the domestic wife has with the outside world.