This paper explores the relevance of Dilthey’s conceptualisation of the ‘'Geisteswissenschaften'’ (human sciences) for Cultural Science. In a nutshell, I argue that Cultural Science is Dilthey plus Darwin. In this effort, I define the 'Geisteswissenschaften' as ‘performative sciences’: Taking economics as an example, I show that the 'Geisteswissenschaften' are sciences which are ontologically productive in creating and performing the object of their research. That means, they are inherently normative since they entail critical reflexivity as a major mode of research. Following Dilthey, 'Geisteswissenschaften' are deeply historical, which implies that their disciplinary structure is evolving together with their objects. Therefore, I argue th...