"Nor is this world inhabited by man the first of things earthly created by God. He made several worlds before ours, but He destroyed them all, because He was pleased with none until He created ours. But even this last world would have had no permanence, if God had executed His original plan of ruling it according to the principle of strict justice. It was only when He saw that justice by itself would undermine the world that He associated mercy with justice, and made them to rule jointly. Thus, from the beginning of all things prevailed Divine goodness, without which nothing could have continued to exist. If not for it, the myriads of evil spirits had soon put an end to the generations of men."