H.s view of the relation between philosophical and non-philosophical sciences has been neglected in debates that concentrate on the relation of common sense and philosophy. Based on this diagnosis the article aims to explicate H.s understanding of non-philosophical sciences as well as their relation to his speculative philosophy. In addition, the article demonstrates that in H.s view philosophy and non-philosophical sciences are not competing or in conflict with each other. Rather, he conceives of them as compatible.After specifying the scope of our research (1.) and presenting a systematic overview of relevant forms of Weltbezug in H. (2.), we analyze four central relations between speculative philosophy and non-philosophical sciences through a close-reading (3.). The final section sketches the systematic implications of our reading (4.).