Beauvoir first self-identified as a feminist in 1972 (Schwarzer 1984, 32), and consistently refused the label of a philosopher despite having taught courses in philosophy (Card 2003, 9). Yet beginning in the 1950s, both her Ethics of Ambiguity ([1947] 1976) and The Second Sex ([1949] 2010) were widely read and quickly appreciated as important to feminist ethics (Card 2003, 1). As works of existentialist morality, they emphasized that we are not all simply subjects and individual choosers but als