Beyond Good and Evil—at any rate that is not the same as ‘Beyond Good and Bad.’
In Ancient Greece and Rome, there’s no real concept of evil. A person is “good” if they are free to embrace their human instincts and pursue strength, power, and joy. A person who’s not able to do so is simply unlucky: they’re not endowed with social privilege, or they’ve been bewitched by the gods, or they’re a bit foolish. In that sense, there’s no such thing as a fundamentally evil person, or fundamentally evil behavior. The opposite of being good is more like being less good—or “Bad”—as in worse off. However, when oppressed people develop their rival moral code, they characterize their oppressors as fundamentally evil for being strong, powerful, aggressive, and experiencing joy from such behavior. Thus, the concept of “evil” enters the picture. So, going “Beyond Good and Evil” means going beyond a way of seeing natural, human power-seeking behavior as “evil” in and of itself. This is what Nietzsche longs for in his own culture.