Proverbs 12:23 Halakhah

אָדָ֣ם עָ֭רוּם כֹּ֣סֶה דָּ֑עַת וְלֵ֥ב כְּ֝סִילִ֗ים יִקְרָ֥א אִוֶּֽלֶת׃

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

Read halakhic rulings (Jewish law) on Proverbs 12:23: and classical halakhic sources.