Why is Christine de pizan's argument for women's intellegence so convincing

Christine de Pizan's argument for women's intelligence is so convincing, because it is backed up by good examples. De Pizan states that women who are able to work for money will be able to support their husband's and this will make the couple happier, as well if women are educated they will have qualities which are useful to society. If women are silenced, than harmful stereotypes will be propagated about them, when women are very apt to be mediators and can easily support each other.