15:14 The discerning heart seeks knowledge,
but the mouth of fools feeds on folly.
15:21 Folly is a joy to one who lacks sense,
but one who has understanding follows an upright course.
17:16 Of what use is money in the hand of a fool,
since he has no intention of acquiring wisdom?
18:15 The discerning person acquires knowledge,
and the wise person seeks knowledge.