Ultimately, all science is correlation. No matter how effectively it may use one variable to describe another, its equations will always ultimately rest upon the surface of a black box. (Saint Herbert might have put it most succinctly when he observed that all proofs inevitably reduce to propositions that have no proof.) The difference between Science and Faith, therefore, is no more and no less than predictive power. Scientific insights have proven to be better predictors than Spiritual ones, at least in worldly matters; they prevail not because they are true, but simply because they work.