 Along with psychologists like Stoller, feminists found it useful to distinguish sex and gender. This enabled them to argue that many differences between women and men were socially produced and, therefore, changeable. Gayle Rubin (for instance) uses the phrase ‘sex/gender system’ in order to describe “a set of arrangements by which the biological raw material of human sex and procreation is shaped by human, social intervention” (1975, 165). Rubin employed this system to articulate that “part of social life which is the locus of the oppression of women” (1975, 159) describing gender as the “socially imposed division of the sexes” (1975, 179). Rubin’s thought was that although biological differences are fixed, gender differences are the oppressive results of social interventions that dictate how women and men should behave. Women are oppressed as women and “by having to be women” (Rubin 1975, 204). However, since gender is social, it is thought to be mutable and alterable by political and social reform that would ultimately bring an end to women’s subordination. Feminism should aim to create a “genderless (though not sexless) society, in which one’s sexual anatomy is irrelevant to who one is, what one does, and with whom one makes love” (Rubin 1975, 204).