Proverbs Chapter 12, Verse 23

23: A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.- edit KJV text
23: A cautious man concealeth knowledge: and the heart of fools publisheth folly.— edit Douay text
23: An understanding man is a throne of wisdom; but the heart of fools shall meet with curses.— edit LXX text