“The nature of the universe has no power which can permanently resist the courageous effort of the intelligence; it must at last open itself up; it must reveal all its depth and riches to the spirit.”45 But long before that culmination philosophy will have perceived that the real world is not the world that we touch or see, but the relationships and regularities that give them order and nobility, the unwritten laws that move the sun and the stars, and constitute the impersonal mind of the world.