Philosophy needs History of Science needs History of Philosophy. The purpose of this essay is to identify why history of science and philosophy of science have lost their former alliance. Reasons include, among others, structural elements in funding, e.g. a run‐down version of interdisciplinarity that encourages philosophy and history to work with the sciences rather than with each other. Moreover, the disciplinary assemblage in terms of cultural studies (German: Kulturwissenschaften) has eroded the continental concept of ‘Geisteswissenschaft’ to which history and philosophy traditionally belong. In consequence, both disciplines face a loss of knowledge in historical terminologies and related inquiries. Above all, these matter for shaping and understanding concepts and ideas; not last for the conceptualization of history and philosophy of science themselves.
Keywords: Geisteswissenschaft; Ian Hacking; Interdisziplinarität; Michael Hampe; Theorie; Wissenschaftsgeschichte; Wissenschaftsphilosophie; history of science; interdisciplinarity; philosophy of science; theory.