I have often had apparitions of hosts of serpents with heads at their tails, but not one was able to bite me; and many other visions.

Open is the way of Satan; many walk therein.

As for antichrist occupying the papal chair, it is evident that a pope living contrary to Christ, like any other perverted person, is called, by common consent, antichrist.

I entreat students of letters and other scholars to obey their masters in things good, to imitate them, and diligently apply themselves to letters for the sake of God's honour and their own salvation and that of other men.

For God is my witness that I neither preached, affirmed, nor defended them, though they say that I did.

A precept or command is a general teaching of God, obligating every man under pain of mortal sin - namely, in cases in which he has fallen away from the command. Hence, the saints who for a period of their life lived hypocritically sinned mortally for that period. So also the damned, by persistent false living, sin persistently in Hell.