12. From this it is evident that there is nothing more necessary for man, than to know what good and what truth are: how the one has respect to the other; and how the one is conjoined to the other. But this is especially necessary for a man of the Church; for just as all things of heaven have relation to good and truth, so also have all things of the Church; because the good and truth of heaven are also the good and truth of the Church. This is why good and truth are made the starting-point.