"چنین گفت زرتشت" (Thus Spoke Zarathustra) is a philosophical novel written by the German philosopher Friedrich Nietzsche. Published in four parts between 1883 and 1885, it presents the teachings of Zarathustra, a prophet-like figure who shares his insights on morality, religion, and the nature of existence. The book explores themes such as the "Übermensch" (Overman), the eternal recurrence, and the critique of traditional values. Through poetic and allegorical language, Nietzsche challenges readers to rethink their beliefs and embrace individualism, ultimately advocating for a life-affirming philosophy that transcends conventional morality.