חָכְמַ֣ת עָ֭רוּם הָבִ֣ין דַּרְכּ֑וֹ וְאִוֶּ֖לֶת כְּסִילִ֣ים מִרְמָֽה׃
The wisdom of the prudent is to look well to his way; But the folly of fools is deceit.
Read kabbalistic (mystical) interpretation of Proverbs 14:8: and classical mystical sources.