"The Dawn of Day" by Friedrich Wilhelm Nietzsche is a philosophical work published in 1881. Nietzsche himself described this as the book where his "campaign against morality begins." Through aphorisms, he challenges Christian morality and biblical interpretation, emphasizing the pursuit of power over pleasure as humanity's driving force. The work develops his moral and cultural relativism while critiquing traditional religious teachings. Written in a polemical, informal style, it contains early versions of ideas he would expand in later writings.