9Whoso quarrieth stones shall be hurt therewith; and he that cleaveth wood is endangered thereby.
10If the iron be blunt, and one do not whet the edge, then must he put to more strength; but wisdom is profitable to direct.
11If the serpent bite before it is charmed, then the charmer hath no advantage.
12The words of a wise man's mouth are gracious; but the lips of a fool will swallow up himself.
13The beginning of the words of his mouth is foolishness; and the end of his talk is grievous madness.
14A fool also multiplieth words; yet man knoweth not what shall be; and that which shall be after him, who can tell him?
15The labour of fools wearieth every one of them, for he knoweth not how to go to the city.
16Woe to thee, O land, when thy king is a boy, and thy princes feast in the morning!
17Happy art thou, O land, when thy king is a free man, and thy princes eat in due season, in strength, and not in drunkenness!
18By slothfulness the rafters sink in; and through idleness of the hands the house leaketh.