: Before women could become visible as philosophers, they had first to become visible as rational autonomous thinkers. A social and ethical position holding that chastity was the most important virtue for women, and that rationality and chastity were incompatible, was a significant impediment to accepting women's capacity for philosophical thought. Thus one of the first tasks for women was to confront this belief and argue for their rationality in the face of a self-referential dilemma.