Unlike women’s studies, which is focused on the factual and historical aspects of women’s lives, feminist philosophy rethinks much of social philosophy and ethics from the perspective of women and the interests of women. Some feminist philosophers have created new philosophical subject matter, whereas others have revisited traditional philosophical approaches that were created by male philosophers. For example, political philosophers have often assumed that the basic political unit is a male head of household, thereby neglecting both female workers and the kind of unpaid work performed by women in traditional families. Feminist philosophers seek revisions and expansions of such assumptions so as to include women.