It has been at least twenty years since I read anything by him, so my cliche statement is based on the conclusions I came to over time (I had another period of reading him about 35 years ago) and the judgments I made about those conclusions.

I'm frankly unwilling to reread him at this stage of my life, so I don't have any details for you, but my strong overall impression was that he essentially despised all that went before him, rejected Western values of good and evil (obviously, and as some here do), and left the reader with nothing beyond the essence of an Aleister Crowley "do what thou wilt" disregard for the idea of objective good and evil.

Others here have said that violence has declined, which is ridiculous in light of the many genocides perpetrated over the last century. The two atom bombs dropped on Japan at the end of WWII likely killed more people in a couple of days than most despots did in a lifetime. And those barely register on the timeline of mass killings in the 20th century.