  This tension between unity and plurality leads in two different directions, one practical and the other theoretical. What might be called the “Kantian” approach proceeds case by case, seeing the way in which these theories run up against their limits in trying to extend beyond the core phenomena of their domain of validity (Bohman 1991, chapter 2). This approach is not theoretical in orientation, but more akin to “social science with a practical intent” to use Habermas’s older vocabulary (Habermas 1971). The “Kantian” answer is given sharpest formulation by Weber in his philosophy of social science. While recognizing the hybrid nature of social science as causal and interpretive, he sought explanations of particular phenomena that united both dimensions. For example, in his Protestant Ethic and the Spirit of Capitalism he brought the macroanalysis of institutional structures together with the micro-analysis of economic rationality and religious belief (Weber 1958). According to this contrasting approach, “the relative rights and specific limitations” of each theory and method are recognized by assigning them to their own particular (and hence limited) empirical domain rather than establishing these judgments of scope and domain through a more comprehensive theory that encompasses all others.