Fool, Book of Proverbs

Whoever conceives a fool has grief; the father of a numskull has no joy.

+ Book of Proverbs 17, 21

http://www.usccb.org/bible/proverbs/17

Advice, Book of Proverbs

Face a bear robbed of her cubs, but never fools in their folly!

+ Book of Proverbs 17, 12

[17:12] Humorous hyperbole. An outraged dangerous beast poses less danger than a fool.

http://www.usccb.org/bible/proverbs/17