Male and female represent the two sides of the great radical dualism. But in fact they are perpetually passing into one another. Fluid hardens to solid, solid rushes to fluid. There is no wholly masculine man, no purely feminine woman. - Margaret Fuller
Manichean dualism is the single worst idea people ever came up with — this notion that you can divide humankind into the children of light and the children of darkness. - James K. Morrow