“When conformity is required, as it is in Christianity, what are the results? To begin with, the sacrifice of truth inevitably follows. One can be committed to conformity or one can be committed to truth, but not both. The pursuit of truth requires the unrestricted use of one's mind--the moral freedom to question, to examine evidence, to consider opposing viewpoints, to criticize, to accept as true only that which can be demonstrated--regardless whether one's conclusions conform to a particular creed.”