Abstract
Four well-known claims about the nature of scientific knowledge can be conjoined to challenge the traditional value-neutrality thesis. These are the Duhem-Quine thesis, the Kuhnian thesis, the "publicity of science" claim, and the "reflexivity of social inquiry" claim. Maximal objectivity reqnires not value-neutrality, but a commitment by the researcher to certain social values—namely those which tend to equalize political advantage in a community. This is an epistemological, not an ethical, argument.