The very idea of freedom presupposes some objective moral law which overarches rulers and ruled alike. Subjectivism about moral values is eternally incompatible with democracy. We and our rulers are of one kind only so long as we are subject to one law. But if there is no Law of Nature, the ethos of any society is the creation of its rulers, educators and conditioners; and every creator stands above and outside his own creation.
C. S. LewisYou can put this another way by saying that while in other sciences the instruments you use are things external to yourself (things like microscopes and telescopes), the instrument through which you see God is your whole self. And if a man's self is not kept clean and bright, his glimpse of God will be blurred - like the Moon seen through a dirty telescope. That is why horrible nations have horrible religions: they have been looking at God through a dirty lens.
C. S. Lewis