 Beauvoir’s positions—that woman has been defined by men and in men’s terms, that ethical theory must attend to women’s social situation and their capacity to be moral decision-makers, and that women’s oppression impedes their knowing themselves and changing their situation—reflect the concerns of many forerunners of feminist ethics. Beauvoir’s work profoundly shaped the emergence of feminist ethics as a subfield of philosophy at a time when philosophers more generally had moved away from the eighteenth- and nineteenth-century tendencies to describe women as lacking morally worthy rational capacities. Instead, by the middle of the twentieth century, some influential philosophers in Europe and the Americas had moved toward approaches that often led to describing both gender and ethics as irrelevant to philosophical discourse (Garry 2017).