Democracy and the Republic came from the Greeks and Romans, yes, but the ideas of personal liberty and natural rights come from the Bible, as does the scientific method. We would have been mired in paganism with no true science if not for the Bible. We would have gone only so far much like the Chinese, with some interesting technological fits and starts, but nothing approaching the modern world. Modern science presupposes an orderly and intelligent design to the the universe, and that idea came directly from the Bible.