New International Version
The prudent keep their knowledge to themselves, but a fool's heart blurts out folly.

American Standard Version
A prudent man concealeth knowledge; But the heart of fools proclaimeth foolishness.

Berean Study Bible
A shrewd man keeps his knowledge to himself, but a foolish heart proclaims its folly.

Douay-Rheims Bible
A cautious man concealeth knowledge: and the heart of fools publisheth folly.

English Revised Version
A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.

King James Bible
A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.

World English Bible
A prudent man keeps his knowledge, but the hearts of fools proclaim foolishness.

Young's Literal Translation
A prudent man is concealing knowledge, And the heart of fools proclaimeth folly.

Proverbs 12:23 Additional Translations ...