Gabrielle Suchon's Treatise on Ethics and Politics offers surprising descriptions of sexual difference for an ostensibly feminist work. Stereotypically feminine traits-such as excessive emotions, chattiness, and deception-are compared to earthquakes, storms, wildfire, and apparitions. Although these descriptions may seem off-putting to modern readers, I argue that in offering these unflattering descriptions of women, Suchon is making a novel intervention in debates about the nature of sexual difference. In the Renaissance and Early Modern period, the salient question about feminine difference was whether it was a preternatural deformity, and specifically a monstrosity. While most pro-woman authors argued that women were not preternatural, Suchon argues the affirmative, claiming that "persons of the sex are true wonders." In doing so, Suchon presses on a tension at the heart of scholastic conceptions of women while also provoking an emotional response that might encourage men to reconsider whether patriarchal practices are truly to their advantage.