Mostly the bits about how our society is mostly built on collective fictions.
2. Siddhartha, by Herman Hesse
I remember being very moved reading this, but I can't quite remember why.
Looks like it's time to re-read it.
I think it's the unfolding of someone who sought knowledge and enlightenment throughout his life and the feeling of impotence he felt when sharing knowledge that can only be transmitted/obtained through life experiences.
You have to live life in order to be enlighted. He always "knew it" in reality, but he didn't have the life experience to really know it.
Elders knowledge won't do it - you can't live/experience life through others experiences/knowledge.
After some age, I think we tend to relate to this because we recall people trying to pass knowledge to us and it never clicked until we lived such events. After that, everything gets a new dimension.
I couldn't follow him in all his conclusions, namely the hunter gatherer worship, that things were in a sense better for them.
But it's probably in the top 3 books I've ever read, best in the last 5 years.