XL. (162) But there are two kinds of ignorance, one simple, being complete insensibility; and the other of a twofold nature, when a man is not only enveloped in ignorance, but also thinks that he knows what he never has known, being elated with an ungrounded opinion of his knowledge. (163) The former evil is the lighter one, for it is the cause of lighter offences, and of what we may perhaps call involuntary errors; but the second is of more importance, for it is the parent of great evils, and not only of unintentional but also of deliberate offences. (164) These are the offences of which Lot, the father of daughters, appears to me to be especially guilty, not being able to nourish a masculine and perfect plant in his soul; for he had two daughters by his wife, who was afterwards turned to stone, whom, using an appropriate appellation, one may call habit, a nature at variance with truth, and always, whenever any one tries to lead it on, lagging behind and looking round upon its ancient and customary ways, and remaining in the midst of them like a lifeless pillar. (165) Of these daughters of his the elder may be called Counsel, and the younger may be named Assent, for assent follows upon taking counsel; but no one after he has assented still takes counsel. Accordingly the mind, when it has taken its seat in its council chamber, begins to put its daughters in motion; and with the elder one, namely, Counsel, it begins to consider and investigate everything; and with the younger one, Assent, it begins easily to assent to the circumstances that arise, and to embrace what is hostile as though it were friendly, if they only present ever so slight an attraction of pleasure from this source. (166) But sober reasoning does not admit these things, but only that reasoning does so which is overcome with wine, and, as it were, drunk.