בִּרְבוֹת֙ הַטּוֹבָ֔ה רַבּ֖וּ אוֹכְלֶ֑יהָ וּמַה־כִּשְׁרוֹן֙ לִבְעָלֶ֔יהָ כִּ֖י אִם־ראית [רְא֥וּת] עֵינָֽיו׃
When goods increase, they are increased that eat them; and what advantage is there to the owner thereof, saving the beholding of them with his eyes?
Read Jewish philosophical commentary on Ecclesiastes 5:10: and classical philosophical sources.