The paper characterizes selected discussions between three representants of the so-called Luftwaffe-assistant-generation (Flakhelfer-Generation, Luftwaffenhelfer generation): Jürgen Habermas, Niklas Luhmann and Joseph Ratzinger. The first part of the paper deals with the characteristics of the generation, from which those three intellectuals come. Afterwards two discussions between them are described. Firstly, discussion between Jürgen Habermas and Niklas Luhmann about the nature of sociological epistemology. The most important conclusions of this discussion have been gathered in the book Theorie der Gesellschaft oder Sozialtechnologie – was leistet die Systemforschung? Secondly, a discussion between Jürgen Habermas and Joseph Ratzinger about the role of religion in modern world is reconstructed. This discussion is mostly to be found in the book Dialektik der Säkularisierung. Über Vernunft und Religion. The author points out in every part, which details of the discussion are typical for the „Flakhelfer-Generation”.