So true, I learned all this stuff after school. I really had to seek this these ideas out for myself and only because I was able to reach across the Internet was I able to adjust my views.
It's exactly the same with me. I never felt satisfied with most of the political stuff you learn at school, but it took years for me to find the needed philosophical foundation to reject so many things we are taught are good/necessary for society.
Regarding The Matrix, I think there is no single best quote. The film is just too good. Every time you can discover something new.