Literary scholars draw comparisons more often than they reflect on the practice of that drawing. Our study of comparisons in hermeneutic practice shows that comparative study is not merely a characteristic of general and comparative literary studies. It can also be found as a (generally qualitative) practice within the monolingual disciplines. The comparison of texts with similar themes is particularly widespread and popular, typically discovering through this comparison the differences and similarities of the literary treatment, in order to prove the aesthetic worth of a work and thus to make increased aesthetic pleasure possible. In addition, there are also studies which, through comparison of sample texts test the validity of statements about literary history or the typology of genres. The practice is particularly associated with comparative literary studies, which claims thus to overcome the limitations of monolingual literary studies. In principle, this form of test study can be extended to an unlimited number of cases, whereby philologists can, among other things, demonstrate how well-read they are. Nevertheless, this form of comparison, too, has to date mostly been used qualitatively, without exploring the potential of a quantitative expansion of the study.Making reference to Descartes' thesis (1628) that every growth in knowledge is always grounded in a comparison, it is discussed under what circumstances individual case studies may be understood as technically comparative in nature. In this regard one should be careful not to rob the concept of the comparison of the element of differentiation. Therefore, in what follows, we only class studies as comparative when they consider at least two cases (e. g. at least two works), although the main interest of the study may be reserved for one case.Further, in literary studies, comparisons may be used both to discover the characteristics of the object investigated (›discovery function‹) and as a (some-JLT 2015; 9(1): Brought to you by | University of Queensland -UQ Library Authenticated Download Date | 6/15/15 11:19 PM times comparatively conceived) control testing the scope of assertions or hypotheses (›control function‹). The emphasis of the use of comparison, as a rule, lies on the qualitative description of the complexity of individual selected cases, whose aesthetic value and place in literary history may thus be judged. By contrast, quantitative comparisons of a few variables within many cases are seldom used by literary scholars. Literary studies have to date hardly taken into account the contrast between quantitative and qualitative comparisons which has been so thoroughly discussed in social science, nor of the attempts to overcome this contrast (for instance through multi-value comparative quantitative analysis, which takes account not only of the need to revise hypotheses, but also the possible necessity of the revision of categories during or after the drawing of comparisons). Instead, an appeal to the ›incomparability‹ of literary art, made as early...