Among the methodological rules of the social sciences we find the principles of value-neutrality and the principle of criticism. Both principles are of vital importance in the social sciences, but both seem to conflict with one another. The principle of criticism excludes value-judgments from the social sciences, because they cannot be empirically tested. Hence, criticism methodologically implies value-neutrality. Yet there is the opposing view that it is precisely the critical social researcher who looks beyond mere 'social facts' taking into account (...) the value framework of the society. Thus, criticism does not lead to value-freedom, but points to the value impact of the so-called social facts. In this paper, the two principles are stated. Then it is shown how and why they are incompatible. Finally, several suggestions are discussed to resolve this methodological conflict. (shrink)