«جِفْنِ الْعِينْ جِرَابْ مَا يِمْلَاهْ إِلَّا التُّرَابْ»

Human desire has no bottom. The eye stands for appetite, pictured as a bag that never reaches capacity: however much a person gains, room for more remains, and the saying names only dust as the thing that will finally fill it. Sack and dust are figurative images, not a remark about actual dirt in the eye.

This greed is treated as built into human nature rather than as a vice of a few unusual people. The saying may be directed at one acquisitive person, but its verdict covers everyone.

Suited to commenting on someone who already has plenty yet keeps chasing more money or goods, or to reflecting more broadly that the human craving for gain is never satisfied.