Even modern science is based on faith. The scientific method is a set of axioms - you start with hypothesis, do some things to prove it, and build up on "proven" theories until you have a model of how the universe works. But science is, to some extent, faith in the complete consistency of the universe; experiments are repeatable, the unexplainable doesn't happen, and there's no such thing as magic.
To some extent, I still look at organized religion as the way the people in charge promoted a moral code among the masses before there was government. I'd like to believe that people have the capacity to be good without the influence of a long-term supernatural reward/punishment system, personally. Everyone has the capacity for the empathy needed to understand that their actions ripple outward from themselves. Maybe I'm naive.
*sigh* I should start worrying about my memory management stuff now though.