▼sn The shrewd person knows the circumstances, dangers and pitfalls that lie ahead. So he deals with them wisely. This makes him cautious.

▼tn Heb “spreads open” [his folly]. W. McKane suggests that this is a figure of a peddler displaying his wares (Proverbs [OTL], 456; cf. NAB “the fool peddles folly”). If given a chance, a fool will reveal his foolishness in public. But the wise study the facts and make decisions accordingly.