Since God is the end of man, since he has created us to be perfect and happy in him, it is manifest that if the designs of creation have not here below been entirely frustrated, there should be found men who tend to their end in seeking and loving God. And nevertheless, because of human liberty, there should also be found other men who neglect God, their principle and their end, and yield to the seduction of created things. Such indeed is the spectacle which the history of the world unceasingly presents to us.