+Erik Beyer Paulsen Belief that evidence proves something is
  still belief. I'm not knocking science - I'm just saying that,
  fundamentally, it's a belief system that happens to be very
  useful in explaining things as they currently are. It's a
  religion. It plays in the same playing field; it argues with
  other religions about its truth. Not all systems of knowledge
  depend on declaring whether something is true or not.
  Engineering, for example, does what WORKS, not necessarily what
  there are theories about. Science and religion are both about
  Universal theories that stand the test of time. They bicker and
  fight a lot. They're in the same category.