וְרָאִ֨יתִֽי אֲנִ֜י אֶת־כָּל־עָמָ֗ל וְאֵת֙ כָּל־כִּשְׁר֣וֹן הַֽמַּעֲשֶׂ֔ה כִּ֛י הִ֥יא קִנְאַת־אִ֖ישׁ מֵרֵעֵ֑הוּ גַּם־זֶ֥ה הֶ֖בֶל וּרְע֥וּת רֽוּחַ׃
Again, I considered all labour and all excelling in work, that it is a man’s rivalry with his neighbour. This also is vanity and a striving after wind.
Read Jewish philosophical commentary on Ecclesiastes 4:4: and classical philosophical sources.