One of the most radical feminist theorists in Europe before the nineteenth century, Fran ois Poullain de la Barre (1647-1723) was a man way ahead of his time. Applying Cartesian principles to "the Woman Question," Poullain demonstrated by rational deduction that the supposedly "self-evident" inequality of the sexes was nothing more than unfounded prejudice. Poullain published three books (anonymously) on this topic in the 1670s, all of which...