25. It is true that a man ought to confess that he is 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 yet he cannot inwardly believe it unless he knows it by searching examination. Then he can say this, and he then first perceives that there is no soundness in him. So, and not otherwise, is the ulcer opened and healed. In any other way the cure is but palliative.