כִּ֣י אָדָ֔ם אֵ֥ין צַדִּ֖יק בָּאָ֑רֶץ אֲשֶׁ֥ר יַעֲשֶׂה־טּ֖וֹב וְלֹ֥א יֶחֱטָֽא׃
For there is not a righteous man upon earth, that doeth good, and sinneth not.
Read Jewish philosophical commentary on Ecclesiastes 7:20: and classical philosophical sources.