Man is created to praise, reverence, and serve God our Lord, and by this means to save his soul. And the other things on the face of the earth are created for man and that they may help him in prosecuting the end for which he is created. From this it follows that man is to use them as much as they help him on to his end, and ought to rid himself of them so far as they hinder him as to it. – St. Ignatius of Loyola
