Feminism is, in fact, a collection of movements aimed at defining, establishing and defending equal political, economic, and social rights and equal opportunities for women. Its concepts overlap with those of women's rights. Much of feminism deals specifically with the problems women face in overcoming social barriers, but some feminists argue that gender equality implies a necessary liberation of both men and women from traditional cultural roles, and look at the problems men face as well. Feminists—that is, persons practicing feminism—may be persons of either sex. Feminist philosophy emerged from these feminist movements and includes general theories and theories about the origins of inequality, and, in some cases, about the social construction of sex and gender, in a variety of disciplines. Feminist activists have campaigned for women's rights—such as in contract, property, and voting— while also promoting women's rights to bodily integrity and autonomy and reproductive