Should a wise men utter vain knowledge, and fill his belly with the east wind?

Which wise men have told from their fathers, and have not hid it:

Hear my words, O ye wise men; and give ear to me, ye that have knowledge.

Great men are not always wise: neither do the aged understand judgment.

Let men of understanding tell me, and let a wise man hearken to me.

Men therefore fear him: he respecteth not any that are wise of heart.