I agree with your whole list except for the fact that I have not read neither "His Dark Materials" nor "Illuminatus!", so thank you for that :) What I want to

I agree with your whole list except for the fact that I have not read neither "His Dark Materials" nor "Illuminatus!", so thank you for that :) What I want to add is that while "Gödel, Escher, Bach" is great, I found "I am a strange loop" makes a better point. I'd say that the two books from Pirsig, plus "I am a strange loop" helped me form a lot of my personal philosophy.