Much work in second wave feminist theory of the 1970s and 1980s converged around a diagnosis of the cultural value system that underpins patriarchal societies. Feminists argued that the fundamental value structure of such societies rests on a series of conceptual dichotomies: reason vs. emotion; culture vs. nature; mind vs. body; and public vs. private. In patriarchal societies, they argued, these oppositions are not merely distinctions — they are implicit hierarchies, with reason valued over emotion, culture over nature, and so on. And in all cases, the valorized terms of these hierarchies are associated with masculinity and the devalued terms with femininity. Men are stereotypically thought to be more rational and logical, less emotional, more civilized and thus more fit for public life, while women are thought to be more emotional and irrational, closer to nature, more tied to their bodies and thus less fit for public life.