13 For who can learn the counsel of God? Or who can discern what the Lord wills? 14 For the reasoning of mortals is worthless, and our designs are likely to fail; 15 for a perishable body weighs down the soul, and this earthy tent burdens the thoughtful mind. 16 We can hardly guess at what is on earth, and what is at hand we find with labor; but who has traced out what is in the heavens? 17 Who has learned your counsel, unless you have given wisdom and sent your holy spirit from on high?

And what shall I say of those who suffer from demoniacal possession? Where is their own intelligence hidden and buried while the malignant spirit is using their body and soul according to his own will? And who is quite sure that no such thing can happen to the wise man in this life? Then, as to the perception of truth, what can we hope for even in this way while in the body, as we read in the true book of Wisdom, The corruptible body weighs down the soul, and the earthly tabernacle presses down the mind that muses upon many things? And eagerness, or desire of action, if this is the right meaning to put upon the Greek ὁρμη, is also reckoned among the primary advantages of nature; and yet is it not this which produces those pitiable movements of the insane, and those actions which we shudder to see, when sense is deceived and reason deranged?