A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.
A fool hath no delight in understanding, but that his heart may discover itself.
Yea 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.