Proverbs 12:16, 23
A fool's anger is known at once, but a prudent man overlooks an insult. . . .

Proverbs 13:16
Every prudent man acts with knowledge, but a fool displays his folly.

Proverbs 15:2, 28
The tongue of the wise commends knowledge, but the mouth of the fool spouts folly. . . .

Proverbs 29:11
A fool vents all his anger, but a wise man holds it back.

Ecclesiastes 10:3
Even as the fool walks along the road, his sense is lacking, and he shows everyone that he is a fool.