בְּשִׂפְתֵ֣י נָ֭בוֹן תִּמָּצֵ֣א חָכְמָ֑ה וְ֝שֵׁ֗בֶט לְגֵ֣ו חֲסַר־לֵֽב׃
In the lips of him that hath discernment wisdom is found; but a rod is for the back of him that is void of understanding.
Read halakhic rulings (Jewish law) on Proverbs 10:13: and classical halakhic sources.