New Revised Standard Version
The mind of one who has understanding seeks knowledge, but the mouths of fools feed on folly.

Contemporary English Version
Anyone with good sense is eager to learn more, but fools are hungry for foolishness.

New American Bible
The discerning heart seeks knowledge, but the mouth of fools feeds on folly.

Douay-Rheims Bible
The heart of the wise seeketh instruction: and the mouth of fools feedeth on foolishness.

The heart of the wise seeketh instruction: and the mouth of fools feedeth on foolishness.

heart

Proverbs 1:5 He shall understand a parable and the interpretation, the words of the wise, and their mysterious sayings.

Proverbs 9:9 The fear of the Lord is the beginning of wisdom: and the knowledge of the holy is prudence.

1 Kings 3:6-12 And Solomon said: Thou hast shewed great mercy to thy servant David, my father, even as he walked before thee in truth, and justice, and an upright heart with thee: and thou hast kept thy great mercy for him, and hast given him a son to sit on his throne, as it is this day. . . .

Psalm 119:97,100 O how have I loved thy law, O Lord! it is my meditation all the day. . . .

Acts 17:11 Now these were more noble than those in Thessalonica, who received the word with all eagerness, daily searching the scriptures, whether these things were so.

2 Peter 3:18 But grow in grace and in the knowledge of our Lord and Saviour Jesus Christ. To him be glory both now and unto the day of eternity, Amen.

the mouth

Proverbs 12:23 A cautious man concealeth knowledge: and the heart of fools publisheth folly.

Isaiah 30:10 Who say to the seers: See not: and to them that behold: Behold not for us those things that are right: speak unto us pleasant things, see errors for us.

Isaiah 44:20 Part thereof is ashes: his foolish heart adoreth it, and he will not save his soul, nor say: Perhaps there is a lie in my right hand.

Hosea 12:1 Ephraim feedeth on the wind, and followeth the burning heat: all the day long he multiplied lies and desolation: and he hath made a covenant with the Assyrians, and carried oil into Egypt.