Nietzsche claims that the modern morality is not universal truth. He says morality is a historical invention born out of ressentiment, the pyschological revenge of the weak against the strong. By that, he claims we can't say something is "good" or "evil."

The writing is intellectually exhilarating, and Nietzsche's books, in general, mostly read like poems rather than books. But when I finished the book, I found it ultimately unsatisfying. And left me with more questions than answering the tangible ones. Perhaps that's the point—but I'm still left wondering what to actually build with all this rubble.