(outdent) @Nick: I think the best solution is the simplest one - just quote secondary sources that define feminism in order to define feminism. The lead will end up being something along the sides of "feminism is a movement for women's rights and equality of the sexes" because that is the common, definition of the broadest part of the feminist movement. Any of the books I listed in August will provide quotable text for that.  @Both: Please step back from personalizing this issue. This is a content matter there is no need to get personal about it