The Philosophy (and Religion) of Psi-Wars
Philosophy is devoted to rational discourse, whereas mysticism tries to reach beyond the limits of reason to what cannot be said or even thought.- Peter Adamson, the History of Philosophy Without Any Gaps (Philosphy) particularly suits a martial-arts campaign in which the character knows combat skills with different (and even antagonistic) spiritual teachings; by adopting both schools' philosophical teachings, they may be combined without conflict.-GURPS Compendium I In Psi-Wars, I've chosen to use the Philosophy skill where I should probably use Theology.
Religion in Psi-Wars
Lost your religion? Check out my analysis of GURPS Religion for the purposes of Psi-Wars! Includes a discussion of philosophy and its comparisons and contrasts with theology