Thus Spoke Zarathustra by nietzsche is great.
Hegel's Phenomenology of spirit is good if you got the mustards.
http://www.marxists.org/reference/ar...h/phconten.htm
Umm, Pathagoras of course. He's a great read. So are "Hermetic" reads.
H.P. Blavatsky; secret doctrines, isis unveiled... you can get both the isis unveiled books at barnes and noble for like 20 bucks, and they are like 300 page books.
"Classic" philosophy is easy.. there's like huge pages dedicated to their writings online.
http://classics.mit.edu/Browse/index-Plato.html
You should read "Lucretius' Nature of things", that is good to read just to laugh at the "Scientific" community who made ohsomanydiscoveries.