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 is there no advantage in the charmer.
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 mischievous madness.