25. It is true that a man ought to confess to being a sinner, and that from the head to the sole of the foot there is no soundness in him. This he can say, and say from knowledge; but still he cannot inwardly believe it unless he knows it through investigation. Then he can say these things, and then he first discerns that there is no soundness in him.
In this and in no other way is the ulcer opened and healed. In any other way it is palliative curing.