" Profounder things had also passed. It was a completely secular age. Of the faiths that existed before the coming of the overlords, only a form of purified Buddhism, perhaps the most peculiar of all religions, still survived. The creeds that had been based upon miracles and revelations had collapsed utterly. With the rise of education, they had already been slowly dissolving, but for a while the Overlords had taken no sides in the matter. Though Karellen was often asked to express his views on religion, all that he would say was that a man's beliefs were his own affair, so long as they did not interfere with the liberty of others. "

― Arthur C. Clarke , Childhood's End