כָּל־זֹ֖ה נִסִּ֣יתִי בַֽחָכְמָ֑ה אָמַ֣רְתִּי אֶחְכָּ֔מָה וְהִ֖יא רְחוֹקָ֥ה מִמֶּֽנִּי׃
All this have I tried by wisdom; I said: ‘I will get wisdom’; but it was far from me.
Read Jewish philosophical commentary on Ecclesiastes 7:23: and classical philosophical sources.