Proverbs 14:7 in the King James Version
Go from the presence of a foolish man, when thou perceivest not in him the lips of knowledge.
Context
6 A scoffer seeks wisdom, and doesn’t find it, but knowledge comes easily to a discerning person.
7 Stay away from a foolish man, for you won’t find knowledge on his lips.
8 The wisdom of the prudent is to think about his way, but the folly of fools is deceit.