“What necessity is there for self-restraint to the one who has no need of it? For to have such desires that one must exercise self-restraint in order to control them is characteristic of someone who is not yet pure. Rather, he is still subject to lusts. Now, fortitude is taken on because of fear and cowardice. It is no longer fitting that the friend of God . . . should fall into pleasures or fears and be occupied with the repression of lusts.”