Summa Theologica

Since it looks like skeptical philosophy is covered pretty well, here are some books from religious philosophy that you'd probably do well to read: The Tao te Ching The Summa Theologica by Thomas Aquinas An Essay in Aid of a Grammar of Assent by John Henry Newman Either/Or by Kierkegaard

Some of the best philosophy books I've found for free online: Thomas Aquinas' Summa Theologica. Even though you may not agree with his conclusions, it is still a remarkable piece of work. http://www.ccel.org/a/aquinas/summa/FP.html David Stove does a good job debunking Hume's problem of induction, which underlies what I consider wrong in most modern philosophy http://web.maths.unsw.edu.au/~jim/davidstove.html Liberty or Equality outlines the potential for tyranny inherent in democracy http://blog.mises.org/6326/liberty-or-equality/