The term 'Spoke Zarathustra' refers to the philosophical novel by Friedrich Nietzsche, which was published in 1883. The novel follows the story of a fictional character named Zarathustra, who speaks of his philosophy and ideas about morality and religion. The title of the novel is derived from the Greek phrase 'THUS Spoke Zarathustra, ' which is used to introduce each of the four parts of the book. The novel has been widely influential in philosophy, literature, and popular culture.