 Offering the first occurrence of the term feminisme (Offen 1988), the nineteenth century is characterized by a plurality of approaches to protofeminist ethics, that is, ethical theorizing that anticipated and created the groundwork for modern feminist concepts. These include some theories consistent with the universal humanism of Wollstonecraft and Condorcet and others emphasizing the differences between the sexes in order to argue for the superiority of feminine morality. The most well-known of the former in philosophy are John Stuart Mill’s The Subjection of Women ([1869] 1987), which he credits Harriet Taylor Mill with co-authoring, and Harriet Taylor Mill’s essay, “The Enfranchisement of Women” (H. T. Mill [1851] 1998). Like their Enlightenment forerunners, Mill and Taylor argue that women ought to have equal rights and equal access to political and social opportunities. As a utilitarian philosopher, Mill further emphasizes the benefits to society and to the human species of improving women’s lives and social situations. Mill expresses skepticism about claims that women are morally superior to men, as well as claims that women have “greater liability to moral bias,” emotionality, and poor judgment in ethical decision-making ([1869] 1987, 518 and 519). Mill and Taylor tend to overemphasize the roles of women who are wives. They grant some differences between men and women that are controversial today; Mill’s works especially emphasize the benefits to family and domestic life as reasons to support the liberation of women from subjugation. Despite these views, both argue for the benefits of women’s liberation to scholarly and political spheres. For example, they describe differences in achievement and behavior to be the result mainly of women’s social situations and education, making their view consistent with the arguments of both the Enlightenment scholars noted above, and some, but not all, of the nineteenth- and twentieth-century authors discussed below.