Proverbs 24:5 Kabbalah

גֶּֽבֶר־חָכָ֥ם בַּע֑וֹז וְאִֽישׁ־דַּ֝֗עַת מְאַמֶּץ־כֹּֽחַ׃

A wise man is strong; Yea, a man of knowledge increaseth strength.

Read kabbalistic (mystical) interpretation of Proverbs 24:5: and classical mystical sources.