בּוֹטֵ֣חַ בְּ֭לִבּוֹ ה֣וּא כְסִ֑יל וְהוֹלֵ֥ךְ בְּ֝חָכְמָ֗ה ה֣וּא יִמָּלֵֽט׃
He that trusteth in his own heart is a fool; But whoso walketh wisely, he shall escape.
Read kabbalistic (mystical) interpretation of Proverbs 28:26: and classical mystical sources.