עִ֣יר גִּ֭בֹּרִים עָלָ֣ה חָכָ֑ם וַ֝יֹּ֗רֶד עֹ֣ז מִבְטֶחָֽה׃
A wise man scaleth the city of the mighty, And bringeth down the stronghold wherein it trusteth.
Read kabbalistic (mystical) interpretation of Proverbs 21:22: and classical mystical sources.