 One way to support this last claim is to advance Quinean holism, and insist that any evidence may bear on any belief or value (Nelson 1990). While accepting the bi-directional influence of facts and values, Anderson (2004) rejects holism, arguing that some observations bear closer relevance relations than others to specific values. Further progress in understanding legitimate and fruitful interactions of facts and values in scientific inquiry will likely involve naturalizing moral epistemology, to get a clearer view of the bearing of observations on values. Tobin and Jaggar (2013) offer one way to naturalize feminist moral epistemology.