In the last decades, scholars have aptly pointed out the limits of J.N. Tetens’ contribution to the rise of Kant’s critical theory of knowledge. Less attention has been paid to the possibility of recognizing a further, possibly more consistent, contribution by Tetens to Kant’s thought, namely, to the development of Kant’s anthropology. The present paper aims to test some possible research lines in this direction. After an overview on the observational method shared by Tetens’ gnoseological framework and Kant’s anthropological approach, (...) we will more specifically dwell on some topics that seem to allow a continuity-claim between Tetens’ psychological analysis of the human cognitive faculties and Kant’s anthropological project. The main issues at stake in this investigation are the faculty of empirical productive imagination, the figure of the genius, and the relationship between language and Denkungsart. (shrink)