Proverbs 15:28
28 The heart of the righteous yponders how to answer,
but zthe mouth of the wicked pours out evil things.
Proverbs 12:23
23 kA prudent man conceals knowledge,
kbut the heart of fools proclaims folly.
Proverbs 13:16
16 qEvery prudent man acts with knowledge,
rbut a fool flaunts his folly.
Proverbs 18:2
2 A fool takes no pleasure in understanding,
but only zin expressing his opinion.