Two things for November:
Rousseau: A Discourse on the Origin of Inequality link
Kant: Fundamental Principles of the Metaphysic of Morals link
Those are some pretty meaty titles, don't you think? A couple of months back I joked that the Kant piece looks like it was titled in such a way as to scare people away from it. Remember though, the people that set up this list thought that the average person could understand all of it. So take your time, make some diagrams (I have) and read it. Think how good you'll feel after you're done.