Proverbs 12:16,23 A fool's wrath is presently known: but a prudent man covers shame...
Proverbs 13:16 Every prudent man deals with knowledge: but a fool lays open his folly.
Proverbs 15:2,28 The tongue of the wise uses knowledge aright: but the mouth of fools pours out foolishness...
Proverbs 29:11 A fool utters all his mind: but a wise man keeps it in till afterwards.
Ecclesiastes 10:3 Yes also, when he that is a fool walks by the way, his wisdom fails him, and he said to every one that he is a fool.