בְּלֵ֣ב נָ֭בוֹן תָּנ֣וּחַ חָכְמָ֑ה וּבְקֶ֥רֶב כְּ֝סִילִ֗ים תִּוָּדֵֽעַ׃
In the heart of him that hath discernment wisdom resteth; But in the inward part of fools it maketh itself known.
Read kabbalistic (mystical) interpretation of Proverbs 14:33: and classical mystical sources.