1. On authority is not a book, it’s an essay.
2. I’ve read it. It’s trash. That’s why I don’t like Engels.

Edit: oh boy, did you seriously edit your comment to delete your original point and you use it to sound even more smug than before?

Text is not great at conveying irony/sarcasm, use tone tags (like “/s”) the next time if you don’t want to risk being misunderstood and stop being butthurt.