Question: How did Faith in the Earth and Thus Spoke Zarathustra progress Friedrich Nietzsche's own form of unique belief system?
Sentence (from "Thus Spoke Zarathustra"): Much of the work deals with ideas such as the "eternal recurrence of the same", the parable on the "death of God", and the "prophecy" of the "Übermensch", which were first introduced in "The Gay Science".
Relevant evidence: Yes