חָכְמַ֣ת עָ֭רוּם הָבִ֣ין דַּרְכּ֑וֹ וְאִוֶּ֖לֶת כְּסִילִ֣ים מִרְמָֽה׃
Rashi on Proverbs
The wisdom of a cunning man Heb. ערום, he who is wise. is to understand his way To weigh his paths.
Rashi on Proverbs
but the folly of the fools That is the deceit in their hearts. It will ultimately bring them to foolishness.