Envy never enriched any man.

Resenting another person's advantages does nothing to increase one's own wealth or prospects. Their good fortune cannot be turned into personal gain merely by begrudging it.

The proverb also warns against dwelling on comparisons that offer no way forward. Envy may focus attention on what others have, but it does not improve one's own circumstances.

Use the proverb to discourage resentful comparisons, especially when someone treats another person's success as a reason for bitterness. Its point is about envy, not about the wish to improve one's own situation.