The interpretation of the role of metaphor and metonymy in Nietzsche's early essay On Truth and Lies in a Nonmoral Sense is based on the constructivism thesis. The core thesis is the double form of metaphor, or more precisely - metonymy.
It is used both in the sense of transposition (Übertragung) and in the sense of the positing of identity (Gleichsetzen). I aim to show that only the latter sense makes up for a truly human phenomenon.
According to Nietzche, it is solely here that we can talk about the reason and truth. At the same time I trace the reasons why Nietzsche's text had to remain unfinished.