Proverbs 14:33
Wisdom resteth in the heart of him that hath understanding: but that which is in the midst of fools is made known.
Proverbs 12:16
A fool's wrath is presently known: but a prudent man covereth shame.
Proverbs 29:11
A fool uttereth all his mind: but a wise man keepeth it in till afterwards.
Proverbs 12:23
A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.
Proverbs 13:16
Every prudent man dealeth with knowledge: but a fool layeth open his folly.
Proverbs 15:2
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.
Proverbs 15:28
The heart of the righteous studieth to answer: but the mouth of the wicked poureth out evil things.
Ecclesiastes 10:3
Also, when he that is a fool walketh by the way, his wisdom faileth him, and he saith to every one that he is a fool.